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Finding the Third Proportional to 2,855.25 and 4,308.19

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Solution

The third proportional to 2,855.25 and 4,308.19 is: 6,500.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.25 : 4,308.19 = 4,308.19 : x
  2. Step 2: Convert to fraction form
    2,855.25/4,308.19 = 4,308.19/x
  3. Step 3: Cross multiply
    2,855.25x = 4,308.19 × 4,308.19
  4. Step 4: Simplify right side
    2,855.25x = 18,560,479.54
  5. Step 5: Solve for x
    x = 18,560,479.54/2,855.25
  6. Step 6: Final answer
    x = 6,500.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.