Home / 2,517.72-3,474.26-1,398.56

Finding the Fourth Proportional to 2,517.72, 3,474.26 and 1,398.56

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Solution

The fourth proportional to 2,517.72, 3,474.26 and 1,398.56 is: 1,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.72 : 3,474.26 = 1,398.56 : x
  2. Step 2: Convert to fraction form
    2,517.72/3,474.26 = 1,398.56/x
  3. Step 3: Cross multiply
    2,517.72x = 3,474.26 × 1,398.56
  4. Step 4: Simplify right side
    2,517.72x = 4,858,961.07
  5. Step 5: Solve for x
    x = 4,858,961.07/2,517.72
  6. Step 6: Final answer
    x = 1,929.91

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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.