Home / 3,917.88-5,876.82-2,618.64

Finding the Fourth Proportional to 3,917.88, 5,876.82 and 2,618.64

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Solution

The fourth proportional to 3,917.88, 5,876.82 and 2,618.64 is: 3,927.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.88 : 5,876.82 = 2,618.64 : x
  2. Step 2: Convert to fraction form
    3,917.88/5,876.82 = 2,618.64/x
  3. Step 3: Cross multiply
    3,917.88x = 5,876.82 × 2,618.64
  4. Step 4: Simplify right side
    3,917.88x = 15,389,275.92
  5. Step 5: Solve for x
    x = 15,389,275.92/3,917.88
  6. Step 6: Final answer
    x = 3,927.96

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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.