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Finding the Third Proportional to 3,113.44 and 5,118.19

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Solution

The third proportional to 3,113.44 and 5,118.19 is: 8,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.44 : 5,118.19 = 5,118.19 : x
  2. Step 2: Convert to fraction form
    3,113.44/5,118.19 = 5,118.19/x
  3. Step 3: Cross multiply
    3,113.44x = 5,118.19 × 5,118.19
  4. Step 4: Simplify right side
    3,113.44x = 26,195,843.29
  5. Step 5: Solve for x
    x = 26,195,843.29/3,113.44
  6. Step 6: Final answer
    x = 8,413.80

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.