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Finding the Fourth Proportional to 3,601.50, 5,398.23 and 1,520.88

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Solution

The fourth proportional to 3,601.50, 5,398.23 and 1,520.88 is: 2,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.50 : 5,398.23 = 1,520.88 : x
  2. Step 2: Convert to fraction form
    3,601.50/5,398.23 = 1,520.88/x
  3. Step 3: Cross multiply
    3,601.50x = 5,398.23 × 1,520.88
  4. Step 4: Simplify right side
    3,601.50x = 8,210,060.04
  5. Step 5: Solve for x
    x = 8,210,060.04/3,601.50
  6. Step 6: Final answer
    x = 2,279.62

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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.