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Finding the Fourth Proportional to 1,500.87, 2,251.37 and 527.11

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Solution

The fourth proportional to 1,500.87, 2,251.37 and 527.11 is: 790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.87 : 2,251.37 = 527.11 : x
  2. Step 2: Convert to fraction form
    1,500.87/2,251.37 = 527.11/x
  3. Step 3: Cross multiply
    1,500.87x = 2,251.37 × 527.11
  4. Step 4: Simplify right side
    1,500.87x = 1,186,719.64
  5. Step 5: Solve for x
    x = 1,186,719.64/1,500.87
  6. Step 6: Final answer
    x = 790.69

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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.