Home / 3,081.68-4,251.24-1,902.32

Finding the Fourth Proportional to 3,081.68, 4,251.24 and 1,902.32

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Solution

The fourth proportional to 3,081.68, 4,251.24 and 1,902.32 is: 2,624.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.68 : 4,251.24 = 1,902.32 : x
  2. Step 2: Convert to fraction form
    3,081.68/4,251.24 = 1,902.32/x
  3. Step 3: Cross multiply
    3,081.68x = 4,251.24 × 1,902.32
  4. Step 4: Simplify right side
    3,081.68x = 8,087,218.88
  5. Step 5: Solve for x
    x = 8,087,218.88/3,081.68
  6. Step 6: Final answer
    x = 2,624.29

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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.