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Finding the Fourth Proportional to 3,229.78, 4,840.04 and 1,840.25

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Solution

The fourth proportional to 3,229.78, 4,840.04 and 1,840.25 is: 2,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.78 : 4,840.04 = 1,840.25 : x
  2. Step 2: Convert to fraction form
    3,229.78/4,840.04 = 1,840.25/x
  3. Step 3: Cross multiply
    3,229.78x = 4,840.04 × 1,840.25
  4. Step 4: Simplify right side
    3,229.78x = 8,906,883.61
  5. Step 5: Solve for x
    x = 8,906,883.61/3,229.78
  6. Step 6: Final answer
    x = 2,757.74

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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.