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Finding the Fourth Proportional to 2,730.25, 4,095.49 and 881.22

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Solution

The fourth proportional to 2,730.25, 4,095.49 and 881.22 is: 1,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.25 : 4,095.49 = 881.22 : x
  2. Step 2: Convert to fraction form
    2,730.25/4,095.49 = 881.22/x
  3. Step 3: Cross multiply
    2,730.25x = 4,095.49 × 881.22
  4. Step 4: Simplify right side
    2,730.25x = 3,609,027.70
  5. Step 5: Solve for x
    x = 3,609,027.70/2,730.25
  6. Step 6: Final answer
    x = 1,321.87

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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.