Question

Find the missing number in the box
in the proportion:

`8/square = 3.2/4`

Answer 1

In order to get the missing number, we consider the fact that 3.2 × 2.5 = 8, i.e., when we multiply 3.2 by 2.5 we get 8. This indicates that to get the missing number, 4 must also be multiplied by 2.5.

When we multiply, we have, 4 × 2.5 = 10

Hence, the ratio is `8/10`.

∴ \[\frac{8}{\boxed{10}} = \frac{3.2}{4}\]