Home / 7,919.57-11,876.83-2,371.88

Finding the Fourth Proportional to 7,919.57, 11,876.83 and 2,371.88

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Solution

The fourth proportional to 7,919.57, 11,876.83 and 2,371.88 is: 3,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.57 : 11,876.83 = 2,371.88 : x
  2. Step 2: Convert to fraction form
    7,919.57/11,876.83 = 2,371.88/x
  3. Step 3: Cross multiply
    7,919.57x = 11,876.83 × 2,371.88
  4. Step 4: Simplify right side
    7,919.57x = 28,170,439.30
  5. Step 5: Solve for x
    x = 28,170,439.30/7,919.57
  6. Step 6: Final answer
    x = 3,557.07

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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.