Home / 3,820.22-5,729.70-1,481.30

Finding the Fourth Proportional to 3,820.22, 5,729.70 and 1,481.30

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Solution

The fourth proportional to 3,820.22, 5,729.70 and 1,481.30 is: 2,221.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.22 : 5,729.70 = 1,481.30 : x
  2. Step 2: Convert to fraction form
    3,820.22/5,729.70 = 1,481.30/x
  3. Step 3: Cross multiply
    3,820.22x = 5,729.70 × 1,481.30
  4. Step 4: Simplify right side
    3,820.22x = 8,487,404.61
  5. Step 5: Solve for x
    x = 8,487,404.61/3,820.22
  6. Step 6: Final answer
    x = 2,221.71

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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.