Home / 3,861.18-5,791.44-1,519.86

Finding the Fourth Proportional to 3,861.18, 5,791.44 and 1,519.86

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Solution

The fourth proportional to 3,861.18, 5,791.44 and 1,519.86 is: 2,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.18 : 5,791.44 = 1,519.86 : x
  2. Step 2: Convert to fraction form
    3,861.18/5,791.44 = 1,519.86/x
  3. Step 3: Cross multiply
    3,861.18x = 5,791.44 × 1,519.86
  4. Step 4: Simplify right side
    3,861.18x = 8,802,178.00
  5. Step 5: Solve for x
    x = 8,802,178.00/3,861.18
  6. Step 6: Final answer
    x = 2,279.66

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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.