Home / 1,996.31-2,756.66-1,251.56

Finding the Fourth Proportional to 1,996.31, 2,756.66 and 1,251.56

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Solution

The fourth proportional to 1,996.31, 2,756.66 and 1,251.56 is: 1,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.31 : 2,756.66 = 1,251.56 : x
  2. Step 2: Convert to fraction form
    1,996.31/2,756.66 = 1,251.56/x
  3. Step 3: Cross multiply
    1,996.31x = 2,756.66 × 1,251.56
  4. Step 4: Simplify right side
    1,996.31x = 3,450,105.35
  5. Step 5: Solve for x
    x = 3,450,105.35/1,996.31
  6. Step 6: Final answer
    x = 1,728.25

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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.