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Finding the Fourth Proportional to 2,951.88, 4,428.25 and 1,840.39

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Solution

The fourth proportional to 2,951.88, 4,428.25 and 1,840.39 is: 2,760.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.88 : 4,428.25 = 1,840.39 : x
  2. Step 2: Convert to fraction form
    2,951.88/4,428.25 = 1,840.39/x
  3. Step 3: Cross multiply
    2,951.88x = 4,428.25 × 1,840.39
  4. Step 4: Simplify right side
    2,951.88x = 8,149,701.70
  5. Step 5: Solve for x
    x = 8,149,701.70/2,951.88
  6. Step 6: Final answer
    x = 2,760.85

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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.