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Finding the Fourth Proportional to 2,592.92, 3,888.20 and 743.61

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Solution

The fourth proportional to 2,592.92, 3,888.20 and 743.61 is: 1,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592.92 : 3,888.20 = 743.61 : x
  2. Step 2: Convert to fraction form
    2,592.92/3,888.20 = 743.61/x
  3. Step 3: Cross multiply
    2,592.92x = 3,888.20 × 743.61
  4. Step 4: Simplify right side
    2,592.92x = 2,891,284.96
  5. Step 5: Solve for x
    x = 2,891,284.96/2,592.92
  6. Step 6: Final answer
    x = 1,115.07

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1.5x scale

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.