Home / 3,919.75-5,877.78-2,276.77

Finding the Fourth Proportional to 3,919.75, 5,877.78 and 2,276.77

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Solution

The fourth proportional to 3,919.75, 5,877.78 and 2,276.77 is: 3,414.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.75 : 5,877.78 = 2,276.77 : x
  2. Step 2: Convert to fraction form
    3,919.75/5,877.78 = 2,276.77/x
  3. Step 3: Cross multiply
    3,919.75x = 5,877.78 × 2,276.77
  4. Step 4: Simplify right side
    3,919.75x = 13,382,353.17
  5. Step 5: Solve for x
    x = 13,382,353.17/3,919.75
  6. Step 6: Final answer
    x = 3,414.08

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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.