Home / 2,117.44-2,921.39-1,371.97

Finding the Fourth Proportional to 2,117.44, 2,921.39 and 1,371.97

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Solution

The fourth proportional to 2,117.44, 2,921.39 and 1,371.97 is: 1,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.44 : 2,921.39 = 1,371.97 : x
  2. Step 2: Convert to fraction form
    2,117.44/2,921.39 = 1,371.97/x
  3. Step 3: Cross multiply
    2,117.44x = 2,921.39 × 1,371.97
  4. Step 4: Simplify right side
    2,117.44x = 4,008,059.44
  5. Step 5: Solve for x
    x = 4,008,059.44/2,117.44
  6. Step 6: Final answer
    x = 1,892.88

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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.