Question

Find the value of x in each of the following proportions (i) 5.2:3.9: :X:3 please tell which solution​

Answer 1

Answer:

value of x = 4.3.

Step-by-step explanation:

we can get it by adding the value of extreme that are the (last and first numbers of proportion) and by adding the value of mean that are (the middle terms of the proportion).

So, we have sum of extreme= 5.2+3= 8.2

and we have sum of mean= 3.9+ x

Now equating the values:-

=>3.9+ x = 8.2

=>x = 8.2 - 3.9

=>x = 4.3

Answer 2

Answer:

value of x = 4.3.

Step-by-step explanation:

we can get it by adding the value of extreme that are the (last and first numbers of proportion) and by adding the value of mean that are (the middle terms of the proportion).

So, we have sum of extreme= 5.2+3= 8.2

and we have sum of mean= 3.9+ x

Now equating the values:-

=>3.9+ x = 8.2

=>x = 8.2 - 3.9

=>x = 4.3

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