Home / 3,539.65-5,310.68-2,221.82

Finding the Fourth Proportional to 3,539.65, 5,310.68 and 2,221.82

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Solution

The fourth proportional to 3,539.65, 5,310.68 and 2,221.82 is: 3,333.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.65 : 5,310.68 = 2,221.82 : x
  2. Step 2: Convert to fraction form
    3,539.65/5,310.68 = 2,221.82/x
  3. Step 3: Cross multiply
    3,539.65x = 5,310.68 × 2,221.82
  4. Step 4: Simplify right side
    3,539.65x = 11,799,375.04
  5. Step 5: Solve for x
    x = 11,799,375.04/3,539.65
  6. Step 6: Final answer
    x = 3,333.49

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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.