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Finding the Fourth Proportional to 2,507.20, 3,760.49 and 658.48

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Solution

The fourth proportional to 2,507.20, 3,760.49 and 658.48 is: 987.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.20 : 3,760.49 = 658.48 : x
  2. Step 2: Convert to fraction form
    2,507.20/3,760.49 = 658.48/x
  3. Step 3: Cross multiply
    2,507.20x = 3,760.49 × 658.48
  4. Step 4: Simplify right side
    2,507.20x = 2,476,206.75
  5. Step 5: Solve for x
    x = 2,476,206.75/2,507.20
  6. Step 6: Final answer
    x = 987.64

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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.