Home / 7,255.20-10,872.72-3,351.36

Finding the Fourth Proportional to 7,255.20, 10,872.72 and 3,351.36

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Solution

The fourth proportional to 7,255.20, 10,872.72 and 3,351.36 is: 5,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.20 : 10,872.72 = 3,351.36 : x
  2. Step 2: Convert to fraction form
    7,255.20/10,872.72 = 3,351.36/x
  3. Step 3: Cross multiply
    7,255.20x = 10,872.72 × 3,351.36
  4. Step 4: Simplify right side
    7,255.20x = 36,438,398.90
  5. Step 5: Solve for x
    x = 36,438,398.90/7,255.20
  6. Step 6: Final answer
    x = 5,022.38

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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.