Home / 8,160.28-12,231.72-3,227.80

Finding the Fourth Proportional to 8,160.28, 12,231.72 and 3,227.80

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Solution

The fourth proportional to 8,160.28, 12,231.72 and 3,227.80 is: 4,838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.28 : 12,231.72 = 3,227.80 : x
  2. Step 2: Convert to fraction form
    8,160.28/12,231.72 = 3,227.80/x
  3. Step 3: Cross multiply
    8,160.28x = 12,231.72 × 3,227.80
  4. Step 4: Simplify right side
    8,160.28x = 39,481,545.82
  5. Step 5: Solve for x
    x = 39,481,545.82/8,160.28
  6. Step 6: Final answer
    x = 4,838.26

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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.