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Finding the Fourth Proportional to 3,723.03, 5,580.45 and 1,640.82

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Solution

The fourth proportional to 3,723.03, 5,580.45 and 1,640.82 is: 2,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.03 : 5,580.45 = 1,640.82 : x
  2. Step 2: Convert to fraction form
    3,723.03/5,580.45 = 1,640.82/x
  3. Step 3: Cross multiply
    3,723.03x = 5,580.45 × 1,640.82
  4. Step 4: Simplify right side
    3,723.03x = 9,156,513.97
  5. Step 5: Solve for x
    x = 9,156,513.97/3,723.03
  6. Step 6: Final answer
    x = 2,459.43

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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.