Home / 5,029.20-7,540.80-3,082.80

Finding the Fourth Proportional to 5,029.20, 7,540.80 and 3,082.80

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Solution

The fourth proportional to 5,029.20, 7,540.80 and 3,082.80 is: 4,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,029.20 : 7,540.80 = 3,082.80 : x
  2. Step 2: Convert to fraction form
    5,029.20/7,540.80 = 3,082.80/x
  3. Step 3: Cross multiply
    5,029.20x = 7,540.80 × 3,082.80
  4. Step 4: Simplify right side
    5,029.20x = 23,246,778.24
  5. Step 5: Solve for x
    x = 23,246,778.24/5,029.20
  6. Step 6: Final answer
    x = 4,622.36

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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.