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Finding the Third Proportional to 3,540.38 and 7,482.38

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Solution

The third proportional to 3,540.38 and 7,482.38 is: 15,813.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.38 : 7,482.38 = 7,482.38 : x
  2. Step 2: Convert to fraction form
    3,540.38/7,482.38 = 7,482.38/x
  3. Step 3: Cross multiply
    3,540.38x = 7,482.38 × 7,482.38
  4. Step 4: Simplify right side
    3,540.38x = 55,985,935.64
  5. Step 5: Solve for x
    x = 55,985,935.64/3,540.38
  6. Step 6: Final answer
    x = 15,813.56

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.