Home / 2,212.97-3,056.27-1,375.66

Finding the Fourth Proportional to 2,212.97, 3,056.27 and 1,375.66

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Solution

The fourth proportional to 2,212.97, 3,056.27 and 1,375.66 is: 1,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.97 : 3,056.27 = 1,375.66 : x
  2. Step 2: Convert to fraction form
    2,212.97/3,056.27 = 1,375.66/x
  3. Step 3: Cross multiply
    2,212.97x = 3,056.27 × 1,375.66
  4. Step 4: Simplify right side
    2,212.97x = 4,204,366.23
  5. Step 5: Solve for x
    x = 4,204,366.23/2,212.97
  6. Step 6: Final answer
    x = 1,899.88

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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.