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Finding the Fourth Proportional to 3,963.70, 5,945.70 and 1,882.64

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Solution

The fourth proportional to 3,963.70, 5,945.70 and 1,882.64 is: 2,824.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.70 : 5,945.70 = 1,882.64 : x
  2. Step 2: Convert to fraction form
    3,963.70/5,945.70 = 1,882.64/x
  3. Step 3: Cross multiply
    3,963.70x = 5,945.70 × 1,882.64
  4. Step 4: Simplify right side
    3,963.70x = 11,193,612.65
  5. Step 5: Solve for x
    x = 11,193,612.65/3,963.70
  6. Step 6: Final answer
    x = 2,824.03

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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.