Home / 2,112.24-3,168.38-1,382.43

Finding the Fourth Proportional to 2,112.24, 3,168.38 and 1,382.43

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Solution

The fourth proportional to 2,112.24, 3,168.38 and 1,382.43 is: 2,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.24 : 3,168.38 = 1,382.43 : x
  2. Step 2: Convert to fraction form
    2,112.24/3,168.38 = 1,382.43/x
  3. Step 3: Cross multiply
    2,112.24x = 3,168.38 × 1,382.43
  4. Step 4: Simplify right side
    2,112.24x = 4,380,056.65
  5. Step 5: Solve for x
    x = 4,380,056.65/2,112.24
  6. Step 6: Final answer
    x = 2,073.65

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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.