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Finding the Third Proportional to 3,621.75 and 7,935.75

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Solution

The third proportional to 3,621.75 and 7,935.75 is: 17,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.75 : 7,935.75 = 7,935.75 : x
  2. Step 2: Convert to fraction form
    3,621.75/7,935.75 = 7,935.75/x
  3. Step 3: Cross multiply
    3,621.75x = 7,935.75 × 7,935.75
  4. Step 4: Simplify right side
    3,621.75x = 62,976,128.06
  5. Step 5: Solve for x
    x = 62,976,128.06/3,621.75
  6. Step 6: Final answer
    x = 17,388.31

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.