Home / 2,172.75-2,997.29-1,374.73

Finding the Fourth Proportional to 2,172.75, 2,997.29 and 1,374.73

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Solution

The fourth proportional to 2,172.75, 2,997.29 and 1,374.73 is: 1,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.75 : 2,997.29 = 1,374.73 : x
  2. Step 2: Convert to fraction form
    2,172.75/2,997.29 = 1,374.73/x
  3. Step 3: Cross multiply
    2,172.75x = 2,997.29 × 1,374.73
  4. Step 4: Simplify right side
    2,172.75x = 4,120,456.56
  5. Step 5: Solve for x
    x = 4,120,456.56/2,172.75
  6. Step 6: Final answer
    x = 1,896.43

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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.