What is Proportion? Definition, Meaning & Example
A statement that two ratios are equal.
TL;DR: A statement that two ratios are equal.
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Proportion: A statement that two ratios are equal.
Explanation
Proportions are equations showing two ratios are equal. In a proportion, the product of means equals the product of extremes (cross multiplication). Proportions are used to solve many real-world problems. Direct proportion means as one quantity increases, the other increases proportionally. Inverse proportion means as one increases, the other decreases.
Example
The proportion 2/3 = 4/6 states that these two ratios are equal, which can be verified by cross multiplication: 2 x 6 = 3 x 4 = 12.
Frequently Asked Questions
How do you solve a proportion?
Use cross multiplication: if a/b = c/d, then a x d = b x c.
What is the difference between ratio and proportion?
A ratio compares two quantities, while a proportion states that two ratios are equal.
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