Home / 3,919.43-5,878.61-2,276.75

Finding the Fourth Proportional to 3,919.43, 5,878.61 and 2,276.75

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Solution

The fourth proportional to 3,919.43, 5,878.61 and 2,276.75 is: 3,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.43 : 5,878.61 = 2,276.75 : x
  2. Step 2: Convert to fraction form
    3,919.43/5,878.61 = 2,276.75/x
  3. Step 3: Cross multiply
    3,919.43x = 5,878.61 × 2,276.75
  4. Step 4: Simplify right side
    3,919.43x = 13,384,113.93
  5. Step 5: Solve for x
    x = 13,384,113.93/3,919.43
  6. Step 6: Final answer
    x = 3,414.81

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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.