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Finding the Third Proportional to 910.75 and 1,965.50

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Solution

The third proportional to 910.75 and 1,965.50 is: 4,241.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.75 : 1,965.50 = 1,965.50 : x
  2. Step 2: Convert to fraction form
    910.75/1,965.50 = 1,965.50/x
  3. Step 3: Cross multiply
    910.75x = 1,965.50 × 1,965.50
  4. Step 4: Simplify right side
    910.75x = 3,863,190.25
  5. Step 5: Solve for x
    x = 3,863,190.25/910.75
  6. Step 6: Final answer
    x = 4,241.77

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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.