Home / 8,110.80-12,159.48-3,491.28

Finding the Fourth Proportional to 8,110.80, 12,159.48 and 3,491.28

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Solution

The fourth proportional to 8,110.80, 12,159.48 and 3,491.28 is: 5,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.80 : 12,159.48 = 3,491.28 : x
  2. Step 2: Convert to fraction form
    8,110.80/12,159.48 = 3,491.28/x
  3. Step 3: Cross multiply
    8,110.80x = 12,159.48 × 3,491.28
  4. Step 4: Simplify right side
    8,110.80x = 42,452,149.33
  5. Step 5: Solve for x
    x = 42,452,149.33/8,110.80
  6. Step 6: Final answer
    x = 5,234.03

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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.