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Finding the Fourth Proportional to 2,043.56, 3,065.66 and 727.74

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Solution

The fourth proportional to 2,043.56, 3,065.66 and 727.74 is: 1,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.56 : 3,065.66 = 727.74 : x
  2. Step 2: Convert to fraction form
    2,043.56/3,065.66 = 727.74/x
  3. Step 3: Cross multiply
    2,043.56x = 3,065.66 × 727.74
  4. Step 4: Simplify right side
    2,043.56x = 2,231,003.41
  5. Step 5: Solve for x
    x = 2,231,003.41/2,043.56
  6. Step 6: Final answer
    x = 1,091.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.