Proportions express the relationship of equality between two ratios. In the proportion 1:4 :: 3:12, which terms are called the extremes and which are called the means?

Question

Quizplus · Accepted Answer

A) In the example given, the outer terms are the extremes (1 and 12) and the inner terms are the means (4 and 3). The way to determine that this proportion consists of two equal ratios is by multiplying the means and then multiplying the extremes and comparing their results. In this case, 4 × 3 = 12 and 1 × 12 = 12.

Proportions Express the Relationship of Equality Between Two Ratios