Home / 3,481.89-5,221.23-1,289.04

Finding the Fourth Proportional to 3,481.89, 5,221.23 and 1,289.04

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Solution

The fourth proportional to 3,481.89, 5,221.23 and 1,289.04 is: 1,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.89 : 5,221.23 = 1,289.04 : x
  2. Step 2: Convert to fraction form
    3,481.89/5,221.23 = 1,289.04/x
  3. Step 3: Cross multiply
    3,481.89x = 5,221.23 × 1,289.04
  4. Step 4: Simplify right side
    3,481.89x = 6,730,375.47
  5. Step 5: Solve for x
    x = 6,730,375.47/3,481.89
  6. Step 6: Final answer
    x = 1,932.97

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1.5x scale

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.