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Finding the Fourth Proportional to 3,976.90, 5,964.80 and 2,201.24

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Solution

The fourth proportional to 3,976.90, 5,964.80 and 2,201.24 is: 3,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.90 : 5,964.80 = 2,201.24 : x
  2. Step 2: Convert to fraction form
    3,976.90/5,964.80 = 2,201.24/x
  3. Step 3: Cross multiply
    3,976.90x = 5,964.80 × 2,201.24
  4. Step 4: Simplify right side
    3,976.90x = 13,129,977.28
  5. Step 5: Solve for x
    x = 13,129,977.28/3,976.90
  6. Step 6: Final answer
    x = 3,301.56

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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.