Home / 1,627.09-2,439.92-702.14

Finding the Fourth Proportional to 1,627.09, 2,439.92 and 702.14

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Solution

The fourth proportional to 1,627.09, 2,439.92 and 702.14 is: 1,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.09 : 2,439.92 = 702.14 : x
  2. Step 2: Convert to fraction form
    1,627.09/2,439.92 = 702.14/x
  3. Step 3: Cross multiply
    1,627.09x = 2,439.92 × 702.14
  4. Step 4: Simplify right side
    1,627.09x = 1,713,154.98
  5. Step 5: Solve for x
    x = 1,713,154.98/1,627.09
  6. Step 6: Final answer
    x = 1,052.90

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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.