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Finding the Third Proportional to 979.50 and 1,737.75

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Solution

The third proportional to 979.50 and 1,737.75 is: 3,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    979.50 : 1,737.75 = 1,737.75 : x
  2. Step 2: Convert to fraction form
    979.50/1,737.75 = 1,737.75/x
  3. Step 3: Cross multiply
    979.50x = 1,737.75 × 1,737.75
  4. Step 4: Simplify right side
    979.50x = 3,019,775.06
  5. Step 5: Solve for x
    x = 3,019,775.06/979.50
  6. Step 6: Final answer
    x = 3,082.98

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.