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Finding the Third Proportional to 3,290.50 and 6,277.75

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Solution

The third proportional to 3,290.50 and 6,277.75 is: 11,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.50 : 6,277.75 = 6,277.75 : x
  2. Step 2: Convert to fraction form
    3,290.50/6,277.75 = 6,277.75/x
  3. Step 3: Cross multiply
    3,290.50x = 6,277.75 × 6,277.75
  4. Step 4: Simplify right side
    3,290.50x = 39,410,145.06
  5. Step 5: Solve for x
    x = 39,410,145.06/3,290.50
  6. Step 6: Final answer
    x = 11,976.95

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.