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Finding the Fourth Proportional to 2,423.61, 3,635.01 and 863.37

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Solution

The fourth proportional to 2,423.61, 3,635.01 and 863.37 is: 1,294.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.61 : 3,635.01 = 863.37 : x
  2. Step 2: Convert to fraction form
    2,423.61/3,635.01 = 863.37/x
  3. Step 3: Cross multiply
    2,423.61x = 3,635.01 × 863.37
  4. Step 4: Simplify right side
    2,423.61x = 3,138,358.58
  5. Step 5: Solve for x
    x = 3,138,358.58/2,423.61
  6. Step 6: Final answer
    x = 1,294.91

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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.