Home / 3,876.47-5,350.02-2,198.15

Finding the Fourth Proportional to 3,876.47, 5,350.02 and 2,198.15

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Solution

The fourth proportional to 3,876.47, 5,350.02 and 2,198.15 is: 3,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.47 : 5,350.02 = 2,198.15 : x
  2. Step 2: Convert to fraction form
    3,876.47/5,350.02 = 2,198.15/x
  3. Step 3: Cross multiply
    3,876.47x = 5,350.02 × 2,198.15
  4. Step 4: Simplify right side
    3,876.47x = 11,760,146.46
  5. Step 5: Solve for x
    x = 11,760,146.46/3,876.47
  6. Step 6: Final answer
    x = 3,033.73

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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.