Question

find the missing term 672 : 687 : : 752 : _______

Select one:

a. 766

b. 832

c. 822

d. 850​

Answer 1

Given:

The two ratios are in proportion.

To find:

We have to calculate the value of the missing number.

Solution:

Let the missing number be X.

672 : 687 : : 752 : X

Proportion is the equality of two ratios.

The two ratios having the sign of proportion between them depicts that both the ratios are equal.

We denote proportion by a symbol (::)

The symbol ( : : ) is replaced by ( = ) sign.

Now, the ratios become,

672/687 = 752/X

Now, we will solve this relation to get the value of X.

X = (752× 687)/672

X = 768.78

We round off the value and get

X = 769

The value of X is 769.

The missing number is 769.