ceciliaamo31
ceciliaamo31 ceciliaamo31
  • 22-07-2021
  • Mathematics
contestada

find the third proportional of 3 5 7

Respuesta :

Bromine67
Bromine67 Bromine67
  • 22-07-2021

Answer: Third proportion is 21/5.

Step-by-step explanation:

Let the proportion be x

so,

3:5:x:7

so

3:5 = x:7

or, 3/5 = x/7

or, 21 = 5x

or, x = 21/5

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