Home / 2,129.20-3,193.27-896.62

Finding the Fourth Proportional to 2,129.20, 3,193.27 and 896.62

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Solution

The fourth proportional to 2,129.20, 3,193.27 and 896.62 is: 1,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.20 : 3,193.27 = 896.62 : x
  2. Step 2: Convert to fraction form
    2,129.20/3,193.27 = 896.62/x
  3. Step 3: Cross multiply
    2,129.20x = 3,193.27 × 896.62
  4. Step 4: Simplify right side
    2,129.20x = 2,863,149.75
  5. Step 5: Solve for x
    x = 2,863,149.75/2,129.20
  6. Step 6: Final answer
    x = 1,344.71

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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.