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Finding the Fourth Proportional to 3,200.72, 4,801.13 and 1,011.29

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Solution

The fourth proportional to 3,200.72, 4,801.13 and 1,011.29 is: 1,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.72 : 4,801.13 = 1,011.29 : x
  2. Step 2: Convert to fraction form
    3,200.72/4,801.13 = 1,011.29/x
  3. Step 3: Cross multiply
    3,200.72x = 4,801.13 × 1,011.29
  4. Step 4: Simplify right side
    3,200.72x = 4,855,334.76
  5. Step 5: Solve for x
    x = 4,855,334.76/3,200.72
  6. Step 6: Final answer
    x = 1,516.95

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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.