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Finding the Third Proportional to 3,945 and 6,019.50

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Solution

The third proportional to 3,945 and 6,019.50 is: 9,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945 : 6,019.50 = 6,019.50 : x
  2. Step 2: Convert to fraction form
    3,945/6,019.50 = 6,019.50/x
  3. Step 3: Cross multiply
    3,945x = 6,019.50 × 6,019.50
  4. Step 4: Simplify right side
    3,945x = 36,234,380.25
  5. Step 5: Solve for x
    x = 36,234,380.25/3,945
  6. Step 6: Final answer
    x = 9,184.89

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.