Home / 3,917.20-5,876.74-1,143.88

Finding the Fourth Proportional to 3,917.20, 5,876.74 and 1,143.88

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Solution

The fourth proportional to 3,917.20, 5,876.74 and 1,143.88 is: 1,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.20 : 5,876.74 = 1,143.88 : x
  2. Step 2: Convert to fraction form
    3,917.20/5,876.74 = 1,143.88/x
  3. Step 3: Cross multiply
    3,917.20x = 5,876.74 × 1,143.88
  4. Step 4: Simplify right side
    3,917.20x = 6,722,285.35
  5. Step 5: Solve for x
    x = 6,722,285.35/3,917.20
  6. Step 6: Final answer
    x = 1,716.09

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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.