Question

find the fourth proportional to: 1/3, 2/5, 6.Answer will be 7 upon 1/5 can anyone explain me step by step please​

Answer 1

The fourth proportional is 21. 1:3::7:x=1:3::7:21

PREMISES

y=the fourth proportional of the ratios 1:3::7:x

CALCULATIONS

y=the fourth proportional of the ratios 1:3::7:x

1:3::7:x

1/3::7/21

and,

1:3::7:21

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