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Finding the Fourth Proportional to 3,952.71, 5,929.40 and 1,612.88

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Solution

The fourth proportional to 3,952.71, 5,929.40 and 1,612.88 is: 2,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.71 : 5,929.40 = 1,612.88 : x
  2. Step 2: Convert to fraction form
    3,952.71/5,929.40 = 1,612.88/x
  3. Step 3: Cross multiply
    3,952.71x = 5,929.40 × 1,612.88
  4. Step 4: Simplify right side
    3,952.71x = 9,563,385.06
  5. Step 5: Solve for x
    x = 9,563,385.06/3,952.71
  6. Step 6: Final answer
    x = 2,419.45

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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.