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Finding the Fourth Proportional to 2,132.80, 3,198.96 and 833.92

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Solution

The fourth proportional to 2,132.80, 3,198.96 and 833.92 is: 1,250.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.80 : 3,198.96 = 833.92 : x
  2. Step 2: Convert to fraction form
    2,132.80/3,198.96 = 833.92/x
  3. Step 3: Cross multiply
    2,132.80x = 3,198.96 × 833.92
  4. Step 4: Simplify right side
    2,132.80x = 2,667,676.72
  5. Step 5: Solve for x
    x = 2,667,676.72/2,132.80
  6. Step 6: Final answer
    x = 1,250.79

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1.5x scale

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.