Home / 5,007.20-7,512.80-3,060.80

Finding the Fourth Proportional to 5,007.20, 7,512.80 and 3,060.80

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Solution

The fourth proportional to 5,007.20, 7,512.80 and 3,060.80 is: 4,592.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.20 : 7,512.80 = 3,060.80 : x
  2. Step 2: Convert to fraction form
    5,007.20/7,512.80 = 3,060.80/x
  3. Step 3: Cross multiply
    5,007.20x = 7,512.80 × 3,060.80
  4. Step 4: Simplify right side
    5,007.20x = 22,995,178.24
  5. Step 5: Solve for x
    x = 22,995,178.24/5,007.20
  6. Step 6: Final answer
    x = 4,592.42

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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.