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Finding the Third Proportional to 3,384.75 and 3,684.75

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Solution

The third proportional to 3,384.75 and 3,684.75 is: 4,011.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.75 : 3,684.75 = 3,684.75 : x
  2. Step 2: Convert to fraction form
    3,384.75/3,684.75 = 3,684.75/x
  3. Step 3: Cross multiply
    3,384.75x = 3,684.75 × 3,684.75
  4. Step 4: Simplify right side
    3,384.75x = 13,577,382.56
  5. Step 5: Solve for x
    x = 13,577,382.56/3,384.75
  6. Step 6: Final answer
    x = 4,011.34

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.