Advertisements
Advertisements
Question
If `1/12` , x and `1/75` are in continued proportion , find x.
Advertisements
Solution
Since `1/12` , x and `1/75` are in continued proportion.
`=> 1/12 : "x" : : "x" : 1/75`
`=> "x"^2 = 1/12 xx 1/75`
`=> x = sqrt (1/900)`
`=> "x"=1/30``1/30`
APPEARS IN
RELATED QUESTIONS
Find the value of the unknown in the following proportion :
c
Find the value of x in the following proportions : 3 : x = 24 : 2
Find the third proportional to 5, 10
If the cost of 14 m of cloth is Rs 1890, find the cost of 6 m of cloth.
If `x/a = y/b = z/c`, prove that `x^3/a^2 + y^3/b^2 + z^3/c^2 = (x+ y+ z)^3/(a + b+ c)^2`
If a, b, c and d are in proportion, prove that: (ma + nb) : b = (mc + nd) : d
If a, b, c are in continued proportion, prove that: (a + b + c) (a – b + c) = a2 + b2 + c2
Find the missing number in the box in the proportions:
`3/8 = square/20`
Determine if the following are in proportion.
32, 48, 70, 210
Determine if the following ratios form a proportion. Also, write the middle terms and extreme terms where the ratios form a proportion.
2 kg : 80 kg and 25 g : 625 g
