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Finding the Fourth Proportional to 1,469.89, 2,202.10 and 1,251.19

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Solution

The fourth proportional to 1,469.89, 2,202.10 and 1,251.19 is: 1,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.89 : 2,202.10 = 1,251.19 : x
  2. Step 2: Convert to fraction form
    1,469.89/2,202.10 = 1,251.19/x
  3. Step 3: Cross multiply
    1,469.89x = 2,202.10 × 1,251.19
  4. Step 4: Simplify right side
    1,469.89x = 2,755,236.87
  5. Step 5: Solve for x
    x = 2,755,236.87/1,469.89
  6. Step 6: Final answer
    x = 1,874.45

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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.