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Finding the Third Proportional to 3,270 and 7,146.75

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Solution

The third proportional to 3,270 and 7,146.75 is: 15,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270 : 7,146.75 = 7,146.75 : x
  2. Step 2: Convert to fraction form
    3,270/7,146.75 = 7,146.75/x
  3. Step 3: Cross multiply
    3,270x = 7,146.75 × 7,146.75
  4. Step 4: Simplify right side
    3,270x = 51,076,035.56
  5. Step 5: Solve for x
    x = 51,076,035.56/3,270
  6. Step 6: Final answer
    x = 15,619.58

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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.