Home / 3,939.74-5,912.34-2,549.62

Finding the Fourth Proportional to 3,939.74, 5,912.34 and 2,549.62

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Solution

The fourth proportional to 3,939.74, 5,912.34 and 2,549.62 is: 3,826.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.74 : 5,912.34 = 2,549.62 : x
  2. Step 2: Convert to fraction form
    3,939.74/5,912.34 = 2,549.62/x
  3. Step 3: Cross multiply
    3,939.74x = 5,912.34 × 2,549.62
  4. Step 4: Simplify right side
    3,939.74x = 15,074,190.75
  5. Step 5: Solve for x
    x = 15,074,190.75/3,939.74
  6. Step 6: Final answer
    x = 3,826.19

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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.