Home / 3,247.29-4,481.12-1,988.39

Finding the Fourth Proportional to 3,247.29, 4,481.12 and 1,988.39

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Solution

The fourth proportional to 3,247.29, 4,481.12 and 1,988.39 is: 2,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.29 : 4,481.12 = 1,988.39 : x
  2. Step 2: Convert to fraction form
    3,247.29/4,481.12 = 1,988.39/x
  3. Step 3: Cross multiply
    3,247.29x = 4,481.12 × 1,988.39
  4. Step 4: Simplify right side
    3,247.29x = 8,910,230.37
  5. Step 5: Solve for x
    x = 8,910,230.37/3,247.29
  6. Step 6: Final answer
    x = 2,743.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.