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Finding the Fourth Proportional to 3,251.31, 4,873.05 and 1,865.60

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Solution

The fourth proportional to 3,251.31, 4,873.05 and 1,865.60 is: 2,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.31 : 4,873.05 = 1,865.60 : x
  2. Step 2: Convert to fraction form
    3,251.31/4,873.05 = 1,865.60/x
  3. Step 3: Cross multiply
    3,251.31x = 4,873.05 × 1,865.60
  4. Step 4: Simplify right side
    3,251.31x = 9,091,155.99
  5. Step 5: Solve for x
    x = 9,091,155.99/3,251.31
  6. Step 6: Final answer
    x = 2,796.15

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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.