Home / 3,884.25-5,360.13-2,115.75

Finding the Fourth Proportional to 3,884.25, 5,360.13 and 2,115.75

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Solution

The fourth proportional to 3,884.25, 5,360.13 and 2,115.75 is: 2,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.25 : 5,360.13 = 2,115.75 : x
  2. Step 2: Convert to fraction form
    3,884.25/5,360.13 = 2,115.75/x
  3. Step 3: Cross multiply
    3,884.25x = 5,360.13 × 2,115.75
  4. Step 4: Simplify right side
    3,884.25x = 11,340,695.05
  5. Step 5: Solve for x
    x = 11,340,695.05/3,884.25
  6. Step 6: Final answer
    x = 2,919.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.