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Finding the Third Proportional to 2,845 and 6,129

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Solution

The third proportional to 2,845 and 6,129 is: 13,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845 : 6,129 = 6,129 : x
  2. Step 2: Convert to fraction form
    2,845/6,129 = 6,129/x
  3. Step 3: Cross multiply
    2,845x = 6,129 × 6,129
  4. Step 4: Simplify right side
    2,845x = 37,564,641
  5. Step 5: Solve for x
    x = 37,564,641/2,845
  6. Step 6: Final answer
    x = 13,203.74

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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.