Home / 2,251.08-3,375.90-691.02

Finding the Fourth Proportional to 2,251.08, 3,375.90 and 691.02

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Solution

The fourth proportional to 2,251.08, 3,375.90 and 691.02 is: 1,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.08 : 3,375.90 = 691.02 : x
  2. Step 2: Convert to fraction form
    2,251.08/3,375.90 = 691.02/x
  3. Step 3: Cross multiply
    2,251.08x = 3,375.90 × 691.02
  4. Step 4: Simplify right side
    2,251.08x = 2,332,814.42
  5. Step 5: Solve for x
    x = 2,332,814.42/2,251.08
  6. Step 6: Final answer
    x = 1,036.31

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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.