Home / 6,761.52-10,147.68-2,815.56

Finding the Fourth Proportional to 6,761.52, 10,147.68 and 2,815.56

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Solution

The fourth proportional to 6,761.52, 10,147.68 and 2,815.56 is: 4,225.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.52 : 10,147.68 = 2,815.56 : x
  2. Step 2: Convert to fraction form
    6,761.52/10,147.68 = 2,815.56/x
  3. Step 3: Cross multiply
    6,761.52x = 10,147.68 × 2,815.56
  4. Step 4: Simplify right side
    6,761.52x = 28,571,401.90
  5. Step 5: Solve for x
    x = 28,571,401.90/6,761.52
  6. Step 6: Final answer
    x = 4,225.59

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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.