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Finding the Third Proportional to 939.56 and 2,175.56

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Solution

The third proportional to 939.56 and 2,175.56 is: 5,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    939.56 : 2,175.56 = 2,175.56 : x
  2. Step 2: Convert to fraction form
    939.56/2,175.56 = 2,175.56/x
  3. Step 3: Cross multiply
    939.56x = 2,175.56 × 2,175.56
  4. Step 4: Simplify right side
    939.56x = 4,733,072.19
  5. Step 5: Solve for x
    x = 4,733,072.19/939.56
  6. Step 6: Final answer
    x = 5,037.53

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.