Home / 3,118.97-4,304.48-2,331.65

Finding the Fourth Proportional to 3,118.97, 4,304.48 and 2,331.65

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Solution

The fourth proportional to 3,118.97, 4,304.48 and 2,331.65 is: 3,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.97 : 4,304.48 = 2,331.65 : x
  2. Step 2: Convert to fraction form
    3,118.97/4,304.48 = 2,331.65/x
  3. Step 3: Cross multiply
    3,118.97x = 4,304.48 × 2,331.65
  4. Step 4: Simplify right side
    3,118.97x = 10,036,507.61
  5. Step 5: Solve for x
    x = 10,036,507.61/3,118.97
  6. Step 6: Final answer
    x = 3,217.90

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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.