Home / 5,129.03-7,082.27-3,243.66

Finding the Fourth Proportional to 5,129.03, 7,082.27 and 3,243.66

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Solution

The fourth proportional to 5,129.03, 7,082.27 and 3,243.66 is: 4,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.03 : 7,082.27 = 3,243.66 : x
  2. Step 2: Convert to fraction form
    5,129.03/7,082.27 = 3,243.66/x
  3. Step 3: Cross multiply
    5,129.03x = 7,082.27 × 3,243.66
  4. Step 4: Simplify right side
    5,129.03x = 22,972,459.69
  5. Step 5: Solve for x
    x = 22,972,459.69/5,129.03
  6. Step 6: Final answer
    x = 4,478.91

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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.