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Finding the Third Proportional to 2,206 and 3,135.50

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Solution

The third proportional to 2,206 and 3,135.50 is: 4,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206 : 3,135.50 = 3,135.50 : x
  2. Step 2: Convert to fraction form
    2,206/3,135.50 = 3,135.50/x
  3. Step 3: Cross multiply
    2,206x = 3,135.50 × 3,135.50
  4. Step 4: Simplify right side
    2,206x = 9,831,360.25
  5. Step 5: Solve for x
    x = 9,831,360.25/2,206
  6. Step 6: Final answer
    x = 4,456.65

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.