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Finding the Fourth Proportional to 3,965.96, 5,472.64 and 2,197.52

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Solution

The fourth proportional to 3,965.96, 5,472.64 and 2,197.52 is: 3,032.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.96 : 5,472.64 = 2,197.52 : x
  2. Step 2: Convert to fraction form
    3,965.96/5,472.64 = 2,197.52/x
  3. Step 3: Cross multiply
    3,965.96x = 5,472.64 × 2,197.52
  4. Step 4: Simplify right side
    3,965.96x = 12,026,244.04
  5. Step 5: Solve for x
    x = 12,026,244.04/3,965.96
  6. Step 6: Final answer
    x = 3,032.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.