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Finding the Fourth Proportional to 1,645.89, 2,469.87 and 952.11

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Solution

The fourth proportional to 1,645.89, 2,469.87 and 952.11 is: 1,428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.89 : 2,469.87 = 952.11 : x
  2. Step 2: Convert to fraction form
    1,645.89/2,469.87 = 952.11/x
  3. Step 3: Cross multiply
    1,645.89x = 2,469.87 × 952.11
  4. Step 4: Simplify right side
    1,645.89x = 2,351,587.93
  5. Step 5: Solve for x
    x = 2,351,587.93/1,645.89
  6. Step 6: Final answer
    x = 1,428.76

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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.