Home / 2,517.56-3,474.36-1,398.48

Finding the Fourth Proportional to 2,517.56, 3,474.36 and 1,398.48

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Solution

The fourth proportional to 2,517.56, 3,474.36 and 1,398.48 is: 1,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.56 : 3,474.36 = 1,398.48 : x
  2. Step 2: Convert to fraction form
    2,517.56/3,474.36 = 1,398.48/x
  3. Step 3: Cross multiply
    2,517.56x = 3,474.36 × 1,398.48
  4. Step 4: Simplify right side
    2,517.56x = 4,858,822.97
  5. Step 5: Solve for x
    x = 4,858,822.97/2,517.56
  6. Step 6: Final answer
    x = 1,929.97

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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.