Home / 3,919.87-5,877.98-2,276.89

Finding the Fourth Proportional to 3,919.87, 5,877.98 and 2,276.89

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Solution

The fourth proportional to 3,919.87, 5,877.98 and 2,276.89 is: 3,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.87 : 5,877.98 = 2,276.89 : x
  2. Step 2: Convert to fraction form
    3,919.87/5,877.98 = 2,276.89/x
  3. Step 3: Cross multiply
    3,919.87x = 5,877.98 × 2,276.89
  4. Step 4: Simplify right side
    3,919.87x = 13,383,487.80
  5. Step 5: Solve for x
    x = 13,383,487.80/3,919.87
  6. Step 6: Final answer
    x = 3,414.27

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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.