Home / 3,877.38-5,349.60-2,198.70

Finding the Fourth Proportional to 3,877.38, 5,349.60 and 2,198.70

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Solution

The fourth proportional to 3,877.38, 5,349.60 and 2,198.70 is: 3,033.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.38 : 5,349.60 = 2,198.70 : x
  2. Step 2: Convert to fraction form
    3,877.38/5,349.60 = 2,198.70/x
  3. Step 3: Cross multiply
    3,877.38x = 5,349.60 × 2,198.70
  4. Step 4: Simplify right side
    3,877.38x = 11,762,165.52
  5. Step 5: Solve for x
    x = 11,762,165.52/3,877.38
  6. Step 6: Final answer
    x = 3,033.53

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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.