Home / 3,081.25-4,624.40-2,158.66

Finding the Fourth Proportional to 3,081.25, 4,624.40 and 2,158.66

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Solution

The fourth proportional to 3,081.25, 4,624.40 and 2,158.66 is: 3,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.25 : 4,624.40 = 2,158.66 : x
  2. Step 2: Convert to fraction form
    3,081.25/4,624.40 = 2,158.66/x
  3. Step 3: Cross multiply
    3,081.25x = 4,624.40 × 2,158.66
  4. Step 4: Simplify right side
    3,081.25x = 9,982,507.30
  5. Step 5: Solve for x
    x = 9,982,507.30/3,081.25
  6. Step 6: Final answer
    x = 3,239.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.