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Finding the Fourth Proportional to 1,997.94, 2,757.51 and 1,252.53

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Solution

The fourth proportional to 1,997.94, 2,757.51 and 1,252.53 is: 1,728.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.94 : 2,757.51 = 1,252.53 : x
  2. Step 2: Convert to fraction form
    1,997.94/2,757.51 = 1,252.53/x
  3. Step 3: Cross multiply
    1,997.94x = 2,757.51 × 1,252.53
  4. Step 4: Simplify right side
    1,997.94x = 3,453,874.34
  5. Step 5: Solve for x
    x = 3,453,874.34/1,997.94
  6. Step 6: Final answer
    x = 1,728.72

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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.