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Finding the Third Proportional to 1,072 and 2,240.75

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Solution

The third proportional to 1,072 and 2,240.75 is: 4,683.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072 : 2,240.75 = 2,240.75 : x
  2. Step 2: Convert to fraction form
    1,072/2,240.75 = 2,240.75/x
  3. Step 3: Cross multiply
    1,072x = 2,240.75 × 2,240.75
  4. Step 4: Simplify right side
    1,072x = 5,020,960.56
  5. Step 5: Solve for x
    x = 5,020,960.56/1,072
  6. Step 6: Final answer
    x = 4,683.73

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.