Home / 3,789.24-5,679.66-2,861.79

Finding the Fourth Proportional to 3,789.24, 5,679.66 and 2,861.79

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Solution

The fourth proportional to 3,789.24, 5,679.66 and 2,861.79 is: 4,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.24 : 5,679.66 = 2,861.79 : x
  2. Step 2: Convert to fraction form
    3,789.24/5,679.66 = 2,861.79/x
  3. Step 3: Cross multiply
    3,789.24x = 5,679.66 × 2,861.79
  4. Step 4: Simplify right side
    3,789.24x = 16,253,994.19
  5. Step 5: Solve for x
    x = 16,253,994.19/3,789.24
  6. Step 6: Final answer
    x = 4,289.51

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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.