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Finding the Third Proportional to 1,365.31 and 2,929.75

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Solution

The third proportional to 1,365.31 and 2,929.75 is: 6,286.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.31 : 2,929.75 = 2,929.75 : x
  2. Step 2: Convert to fraction form
    1,365.31/2,929.75 = 2,929.75/x
  3. Step 3: Cross multiply
    1,365.31x = 2,929.75 × 2,929.75
  4. Step 4: Simplify right side
    1,365.31x = 8,583,435.06
  5. Step 5: Solve for x
    x = 8,583,435.06/1,365.31
  6. Step 6: Final answer
    x = 6,286.79

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.