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The third proportional to 3.5, 5.6 is:___________?

Correct answer: A. 8.96

  • A. 8.96
  • B. 8
  • C. 4.5
  • D. 6.2

Explanation

If c is the third proportional to 3.5 and 5.6, then 3.5:5.6 = 5.6:c, so c = 5.6² ÷ 3.5 = 31.36 ÷ 3.5 = 8.96. The likely mistake is option b, 8, from using an approximate or incorrect division instead of the proportional relation.

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