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Finding the Third Proportional to 3,300.75 and 6,138.28

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Solution

The third proportional to 3,300.75 and 6,138.28 is: 11,415.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300.75 : 6,138.28 = 6,138.28 : x
  2. Step 2: Convert to fraction form
    3,300.75/6,138.28 = 6,138.28/x
  3. Step 3: Cross multiply
    3,300.75x = 6,138.28 × 6,138.28
  4. Step 4: Simplify right side
    3,300.75x = 37,678,496.70
  5. Step 5: Solve for x
    x = 37,678,496.70/3,300.75
  6. Step 6: Final answer
    x = 11,415.13

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.