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Finding the Fourth Proportional to 1,472.71, 2,207.00 and 1,107.26

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Solution

The fourth proportional to 1,472.71, 2,207.00 and 1,107.26 is: 1,659.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.71 : 2,207.00 = 1,107.26 : x
  2. Step 2: Convert to fraction form
    1,472.71/2,207.00 = 1,107.26/x
  3. Step 3: Cross multiply
    1,472.71x = 2,207.00 × 1,107.26
  4. Step 4: Simplify right side
    1,472.71x = 2,443,731.11
  5. Step 5: Solve for x
    x = 2,443,731.11/1,472.71
  6. Step 6: Final answer
    x = 1,659.35

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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.