Home / 1,447.38-2,167.56-714.60

Finding the Fourth Proportional to 1,447.38, 2,167.56 and 714.60

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Solution

The fourth proportional to 1,447.38, 2,167.56 and 714.60 is: 1,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.38 : 2,167.56 = 714.60 : x
  2. Step 2: Convert to fraction form
    1,447.38/2,167.56 = 714.60/x
  3. Step 3: Cross multiply
    1,447.38x = 2,167.56 × 714.60
  4. Step 4: Simplify right side
    1,447.38x = 1,548,938.38
  5. Step 5: Solve for x
    x = 1,548,938.38/1,447.38
  6. Step 6: Final answer
    x = 1,070.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.