Home / 3,177.97-4,387.14-2,116.35

Finding the Fourth Proportional to 3,177.97, 4,387.14 and 2,116.35

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Solution

The fourth proportional to 3,177.97, 4,387.14 and 2,116.35 is: 2,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.97 : 4,387.14 = 2,116.35 : x
  2. Step 2: Convert to fraction form
    3,177.97/4,387.14 = 2,116.35/x
  3. Step 3: Cross multiply
    3,177.97x = 4,387.14 × 2,116.35
  4. Step 4: Simplify right side
    3,177.97x = 9,284,723.74
  5. Step 5: Solve for x
    x = 9,284,723.74/3,177.97
  6. Step 6: Final answer
    x = 2,921.59

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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.