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Finding the Fourth Proportional to 7,250.21, 10,872.99 and 3,739.13

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Solution

The fourth proportional to 7,250.21, 10,872.99 and 3,739.13 is: 5,607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.21 : 10,872.99 = 3,739.13 : x
  2. Step 2: Convert to fraction form
    7,250.21/10,872.99 = 3,739.13/x
  3. Step 3: Cross multiply
    7,250.21x = 10,872.99 × 3,739.13
  4. Step 4: Simplify right side
    7,250.21x = 40,655,468.73
  5. Step 5: Solve for x
    x = 40,655,468.73/7,250.21
  6. Step 6: Final answer
    x = 5,607.49

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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.