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Finding the Fourth Proportional to 3,965.66, 5,472.24 and 2,371.99

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Solution

The fourth proportional to 3,965.66, 5,472.24 and 2,371.99 is: 3,273.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.66 : 5,472.24 = 2,371.99 : x
  2. Step 2: Convert to fraction form
    3,965.66/5,472.24 = 2,371.99/x
  3. Step 3: Cross multiply
    3,965.66x = 5,472.24 × 2,371.99
  4. Step 4: Simplify right side
    3,965.66x = 12,980,071.20
  5. Step 5: Solve for x
    x = 12,980,071.20/3,965.66
  6. Step 6: Final answer
    x = 3,273.12

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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.