Home / 5,481.17-7,562.17-3,121.64

Finding the Fourth Proportional to 5,481.17, 7,562.17 and 3,121.64

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Solution

The fourth proportional to 5,481.17, 7,562.17 and 3,121.64 is: 4,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.17 : 7,562.17 = 3,121.64 : x
  2. Step 2: Convert to fraction form
    5,481.17/7,562.17 = 3,121.64/x
  3. Step 3: Cross multiply
    5,481.17x = 7,562.17 × 3,121.64
  4. Step 4: Simplify right side
    5,481.17x = 23,606,383.46
  5. Step 5: Solve for x
    x = 23,606,383.46/5,481.17
  6. Step 6: Final answer
    x = 4,306.81

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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.