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Finding the Fourth Proportional to 3,679.56, 5,520.81 and 1,731.90

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Solution

The fourth proportional to 3,679.56, 5,520.81 and 1,731.90 is: 2,598.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.56 : 5,520.81 = 1,731.90 : x
  2. Step 2: Convert to fraction form
    3,679.56/5,520.81 = 1,731.90/x
  3. Step 3: Cross multiply
    3,679.56x = 5,520.81 × 1,731.90
  4. Step 4: Simplify right side
    3,679.56x = 9,561,490.84
  5. Step 5: Solve for x
    x = 9,561,490.84/3,679.56
  6. Step 6: Final answer
    x = 2,598.54

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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.