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Finding the Fourth Proportional to 2,729.57, 4,094.89 and 881.15

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Solution

The fourth proportional to 2,729.57, 4,094.89 and 881.15 is: 1,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.57 : 4,094.89 = 881.15 : x
  2. Step 2: Convert to fraction form
    2,729.57/4,094.89 = 881.15/x
  3. Step 3: Cross multiply
    2,729.57x = 4,094.89 × 881.15
  4. Step 4: Simplify right side
    2,729.57x = 3,608,189.65
  5. Step 5: Solve for x
    x = 3,608,189.65/2,729.57
  6. Step 6: Final answer
    x = 1,321.89

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1.5x scale

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.