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Finding the Third Proportional to 3,659 and 7,894

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Solution

The third proportional to 3,659 and 7,894 is: 17,030.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659 : 7,894 = 7,894 : x
  2. Step 2: Convert to fraction form
    3,659/7,894 = 7,894/x
  3. Step 3: Cross multiply
    3,659x = 7,894 × 7,894
  4. Step 4: Simplify right side
    3,659x = 62,315,236
  5. Step 5: Solve for x
    x = 62,315,236/3,659
  6. Step 6: Final answer
    x = 17,030.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.