Home / 5,481.11-7,562.08-3,121.58

Finding the Fourth Proportional to 5,481.11, 7,562.08 and 3,121.58

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Solution

The fourth proportional to 5,481.11, 7,562.08 and 3,121.58 is: 4,306.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.11 : 7,562.08 = 3,121.58 : x
  2. Step 2: Convert to fraction form
    5,481.11/7,562.08 = 3,121.58/x
  3. Step 3: Cross multiply
    5,481.11x = 7,562.08 × 3,121.58
  4. Step 4: Simplify right side
    5,481.11x = 23,605,637.69
  5. Step 5: Solve for x
    x = 23,605,637.69/5,481.11
  6. Step 6: Final answer
    x = 4,306.73

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1.5x scale

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.