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Finding the Third Proportional to 3,717 and 8,878.50

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Solution

The third proportional to 3,717 and 8,878.50 is: 21,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717 : 8,878.50 = 8,878.50 : x
  2. Step 2: Convert to fraction form
    3,717/8,878.50 = 8,878.50/x
  3. Step 3: Cross multiply
    3,717x = 8,878.50 × 8,878.50
  4. Step 4: Simplify right side
    3,717x = 78,827,762.25
  5. Step 5: Solve for x
    x = 78,827,762.25/3,717
  6. Step 6: Final answer
    x = 21,207.36

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.