Home / 3,878.59-5,352.60-2,222.91

Finding the Fourth Proportional to 3,878.59, 5,352.60 and 2,222.91

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Solution

The fourth proportional to 3,878.59, 5,352.60 and 2,222.91 is: 3,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.59 : 5,352.60 = 2,222.91 : x
  2. Step 2: Convert to fraction form
    3,878.59/5,352.60 = 2,222.91/x
  3. Step 3: Cross multiply
    3,878.59x = 5,352.60 × 2,222.91
  4. Step 4: Simplify right side
    3,878.59x = 11,898,348.07
  5. Step 5: Solve for x
    x = 11,898,348.07/3,878.59
  6. Step 6: Final answer
    x = 3,067.70

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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.