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Finding the Third Proportional to 1,253 and 1,943

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Solution

The third proportional to 1,253 and 1,943 is: 3,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253 : 1,943 = 1,943 : x
  2. Step 2: Convert to fraction form
    1,253/1,943 = 1,943/x
  3. Step 3: Cross multiply
    1,253x = 1,943 × 1,943
  4. Step 4: Simplify right side
    1,253x = 3,775,249
  5. Step 5: Solve for x
    x = 3,775,249/1,253
  6. Step 6: Final answer
    x = 3,012.97

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.