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Finding the Fourth Proportional to 3,153.87, 4,731.89 and 1,694.12

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Solution

The fourth proportional to 3,153.87, 4,731.89 and 1,694.12 is: 2,541.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.87 : 4,731.89 = 1,694.12 : x
  2. Step 2: Convert to fraction form
    3,153.87/4,731.89 = 1,694.12/x
  3. Step 3: Cross multiply
    3,153.87x = 4,731.89 × 1,694.12
  4. Step 4: Simplify right side
    3,153.87x = 8,016,357.36
  5. Step 5: Solve for x
    x = 8,016,357.36/3,153.87
  6. Step 6: Final answer
    x = 2,541.75

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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.