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Finding the Third Proportional to 1,983 and 3,082

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Solution

The third proportional to 1,983 and 3,082 is: 4,790.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983 : 3,082 = 3,082 : x
  2. Step 2: Convert to fraction form
    1,983/3,082 = 3,082/x
  3. Step 3: Cross multiply
    1,983x = 3,082 × 3,082
  4. Step 4: Simplify right side
    1,983x = 9,498,724
  5. Step 5: Solve for x
    x = 9,498,724/1,983
  6. Step 6: Final answer
    x = 4,790.08

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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.