Home / 7,917.87-11,876.78-2,371.22

Finding the Fourth Proportional to 7,917.87, 11,876.78 and 2,371.22

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Solution

The fourth proportional to 7,917.87, 11,876.78 and 2,371.22 is: 3,556.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.87 : 11,876.78 = 2,371.22 : x
  2. Step 2: Convert to fraction form
    7,917.87/11,876.78 = 2,371.22/x
  3. Step 3: Cross multiply
    7,917.87x = 11,876.78 × 2,371.22
  4. Step 4: Simplify right side
    7,917.87x = 28,162,387.03
  5. Step 5: Solve for x
    x = 28,162,387.03/7,917.87
  6. Step 6: Final answer
    x = 3,556.81

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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.