Home / 5,481.02-8,221.80-2,672.43

Finding the Fourth Proportional to 5,481.02, 8,221.80 and 2,672.43

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Solution

The fourth proportional to 5,481.02, 8,221.80 and 2,672.43 is: 4,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.02 : 8,221.80 = 2,672.43 : x
  2. Step 2: Convert to fraction form
    5,481.02/8,221.80 = 2,672.43/x
  3. Step 3: Cross multiply
    5,481.02x = 8,221.80 × 2,672.43
  4. Step 4: Simplify right side
    5,481.02x = 21,972,184.97
  5. Step 5: Solve for x
    x = 21,972,184.97/5,481.02
  6. Step 6: Final answer
    x = 4,008.78

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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.