Question

the second, third and fourth term of a proportion are 34, 4 , 68 find the first term​

Answer 1

Answer:

according to the question,

x:34::4:68

we know that ,

sum of extremes = sum of means

68*x = 34*4

x = 2.125

Answer 2

Answer: The First term of proportion is 2

Given:

The three terms of proportion

$34, 4$ and $68$.

To Find:

We need to find the first term.

Solution:

Let the first term be $x$.

According to question:

$x:34::4:68$

we know that product of means = product of extremes.

$x$×$68=34$×$4$

$68x=136$

$x=136/68$

$x=2$

Hence, the First term of proportion is $2$.

NOTE: A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.
Continued Proportions

Any three quantities are said to be in continued proportion if the ratio between the first and the second is equal to the ratio between the second and the third. Similarly, four quantities in continued proportion will have the ratio between the first and second equal to the ratio between the third and fourth.

For more similar questions refer to-

https://brainly.in/question/16842250

https://brainly.in/question/13072159

#SPJ3