Question

Question 4(c)

Determine if the following ratios form a proportion. Also, write the middle terms and extreme terms where the ratios form a proportion:

2 kg : 80 kg and 25 g : 626 g

Answer 1

In a statement of proportion, the four quantities involved when taken in order are known as respective terms. First and fourth terms are known as extreme terms. Second and third terms are known as middle terms.

First ratio: 2 kg : 80 kg = $\frac{2}{80}=\frac{1}{40}=1:40$

Second ratio: 25 g : 625 g = $\frac{25}{625}=\frac{1}{25}=1:25$

The ratios are not equal, therefore these are not in proportion.