Home / 3,998.32-5,517.72-2,320.14

Finding the Fourth Proportional to 3,998.32, 5,517.72 and 2,320.14

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Solution

The fourth proportional to 3,998.32, 5,517.72 and 2,320.14 is: 3,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.32 : 5,517.72 = 2,320.14 : x
  2. Step 2: Convert to fraction form
    3,998.32/5,517.72 = 2,320.14/x
  3. Step 3: Cross multiply
    3,998.32x = 5,517.72 × 2,320.14
  4. Step 4: Simplify right side
    3,998.32x = 12,801,855.29
  5. Step 5: Solve for x
    x = 12,801,855.29/3,998.32
  6. Step 6: Final answer
    x = 3,201.81

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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.