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Finding the Third Proportional to 3,338.72 and 5,190.33

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Solution

The third proportional to 3,338.72 and 5,190.33 is: 8,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.72 : 5,190.33 = 5,190.33 : x
  2. Step 2: Convert to fraction form
    3,338.72/5,190.33 = 5,190.33/x
  3. Step 3: Cross multiply
    3,338.72x = 5,190.33 × 5,190.33
  4. Step 4: Simplify right side
    3,338.72x = 26,939,506.05
  5. Step 5: Solve for x
    x = 26,939,506.05/3,338.72
  6. Step 6: Final answer
    x = 8,068.82

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.