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Finding the Fourth Proportional to 638.87, 952.29 and 569.10

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Solution

The fourth proportional to 638.87, 952.29 and 569.10 is: 848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638.87 : 952.29 = 569.10 : x
  2. Step 2: Convert to fraction form
    638.87/952.29 = 569.10/x
  3. Step 3: Cross multiply
    638.87x = 952.29 × 569.10
  4. Step 4: Simplify right side
    638.87x = 541,948.24
  5. Step 5: Solve for x
    x = 541,948.24/638.87
  6. Step 6: Final answer
    x = 848.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.