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Finding the Fourth Proportional to 1,414.97, 1,953.21 and 1,377.71

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Solution

The fourth proportional to 1,414.97, 1,953.21 and 1,377.71 is: 1,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.97 : 1,953.21 = 1,377.71 : x
  2. Step 2: Convert to fraction form
    1,414.97/1,953.21 = 1,377.71/x
  3. Step 3: Cross multiply
    1,414.97x = 1,953.21 × 1,377.71
  4. Step 4: Simplify right side
    1,414.97x = 2,690,947.18
  5. Step 5: Solve for x
    x = 2,690,947.18/1,414.97
  6. Step 6: Final answer
    x = 1,901.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.