Home / 5,129.01-7,682.94-3,279.42

Finding the Fourth Proportional to 5,129.01, 7,682.94 and 3,279.42

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Solution

The fourth proportional to 5,129.01, 7,682.94 and 3,279.42 is: 4,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.01 : 7,682.94 = 3,279.42 : x
  2. Step 2: Convert to fraction form
    5,129.01/7,682.94 = 3,279.42/x
  3. Step 3: Cross multiply
    5,129.01x = 7,682.94 × 3,279.42
  4. Step 4: Simplify right side
    5,129.01x = 25,195,587.09
  5. Step 5: Solve for x
    x = 25,195,587.09/5,129.01
  6. Step 6: Final answer
    x = 4,912.37

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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.