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Finding the Fourth Proportional to 1,472.18, 2,209.38 and 650.97

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Solution

The fourth proportional to 1,472.18, 2,209.38 and 650.97 is: 976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.18 : 2,209.38 = 650.97 : x
  2. Step 2: Convert to fraction form
    1,472.18/2,209.38 = 650.97/x
  3. Step 3: Cross multiply
    1,472.18x = 2,209.38 × 650.97
  4. Step 4: Simplify right side
    1,472.18x = 1,438,237.66
  5. Step 5: Solve for x
    x = 1,438,237.66/1,472.18
  6. Step 6: Final answer
    x = 976.95

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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.