Home / 5,125.23-7,691.97-2,660.76

Finding the Fourth Proportional to 5,125.23, 7,691.97 and 2,660.76

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Solution

The fourth proportional to 5,125.23, 7,691.97 and 2,660.76 is: 3,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.23 : 7,691.97 = 2,660.76 : x
  2. Step 2: Convert to fraction form
    5,125.23/7,691.97 = 2,660.76/x
  3. Step 3: Cross multiply
    5,125.23x = 7,691.97 × 2,660.76
  4. Step 4: Simplify right side
    5,125.23x = 20,466,486.10
  5. Step 5: Solve for x
    x = 20,466,486.10/5,125.23
  6. Step 6: Final answer
    x = 3,993.28

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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.