This exam tips covers Real-World Applications within Proportion for GCSE Mathematics. Revise Proportion in Number for GCSE Mathematics with 12 exam-style questions and 22 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 13 of 16 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 13 of 16
Practice
12 questions
Recall
22 flashcards
Real-World Applications
Direct Proportion Examples
- Distance ∝ Time (constant speed)
- Cost ∝ Quantity (fixed price per unit)
- Perimeter ∝ Side length (similar shapes)
- Wages ∝ Hours worked (hourly rate)
Inverse Proportion Examples
- Speed ∝ 1/Time (fixed distance)
- Workers ∝ 1/Time (fixed job)
- Brightness ∝ 1/Distance² (light intensity)
- Pressure ∝ 1/Volume (gas laws)
Keep building this topic
Read this section alongside the surrounding pages in Proportion. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Proportion
y is directly proportional to x. Which equation could represent this relationship?
Explain how you can tell from a graph whether two quantities are in direct or inverse proportion.
Quick Recall Flashcards
12 questions on Proportion — practise free
Instant marking, adaptive difficulty, and 22 spaced repetition flashcards. Free until your GCSEs.
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