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Finding the Third Proportional to 3,690.56 and 7,893.70

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Solution

The third proportional to 3,690.56 and 7,893.70 is: 16,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.56 : 7,893.70 = 7,893.70 : x
  2. Step 2: Convert to fraction form
    3,690.56/7,893.70 = 7,893.70/x
  3. Step 3: Cross multiply
    3,690.56x = 7,893.70 × 7,893.70
  4. Step 4: Simplify right side
    3,690.56x = 62,310,549.03
  5. Step 5: Solve for x
    x = 62,310,549.03/3,690.56
  6. Step 6: Final answer
    x = 16,883.75

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.