Home / 3,877.88-5,351.06-2,198.75

Finding the Fourth Proportional to 3,877.88, 5,351.06 and 2,198.75

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Solution

The fourth proportional to 3,877.88, 5,351.06 and 2,198.75 is: 3,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.88 : 5,351.06 = 2,198.75 : x
  2. Step 2: Convert to fraction form
    3,877.88/5,351.06 = 2,198.75/x
  3. Step 3: Cross multiply
    3,877.88x = 5,351.06 × 2,198.75
  4. Step 4: Simplify right side
    3,877.88x = 11,765,621.92
  5. Step 5: Solve for x
    x = 11,765,621.92/3,877.88
  6. Step 6: Final answer
    x = 3,034.04

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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.