Home / 3,753.91-5,631.49-1,288.14

Finding the Fourth Proportional to 3,753.91, 5,631.49 and 1,288.14

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Solution

The fourth proportional to 3,753.91, 5,631.49 and 1,288.14 is: 1,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.91 : 5,631.49 = 1,288.14 : x
  2. Step 2: Convert to fraction form
    3,753.91/5,631.49 = 1,288.14/x
  3. Step 3: Cross multiply
    3,753.91x = 5,631.49 × 1,288.14
  4. Step 4: Simplify right side
    3,753.91x = 7,254,128.02
  5. Step 5: Solve for x
    x = 7,254,128.02/3,753.91
  6. Step 6: Final answer
    x = 1,932.42

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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.