Home / 2,112.23-2,914.79-1,227.97

Finding the Fourth Proportional to 2,112.23, 2,914.79 and 1,227.97

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Solution

The fourth proportional to 2,112.23, 2,914.79 and 1,227.97 is: 1,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.23 : 2,914.79 = 1,227.97 : x
  2. Step 2: Convert to fraction form
    2,112.23/2,914.79 = 1,227.97/x
  3. Step 3: Cross multiply
    2,112.23x = 2,914.79 × 1,227.97
  4. Step 4: Simplify right side
    2,112.23x = 3,579,261.25
  5. Step 5: Solve for x
    x = 3,579,261.25/2,112.23
  6. Step 6: Final answer
    x = 1,694.54

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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.