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Finding the Third Proportional to 1,281.94 and 1,965.38

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Solution

The third proportional to 1,281.94 and 1,965.38 is: 3,013.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.94 : 1,965.38 = 1,965.38 : x
  2. Step 2: Convert to fraction form
    1,281.94/1,965.38 = 1,965.38/x
  3. Step 3: Cross multiply
    1,281.94x = 1,965.38 × 1,965.38
  4. Step 4: Simplify right side
    1,281.94x = 3,862,698.89
  5. Step 5: Solve for x
    x = 3,862,698.89/1,281.94
  6. Step 6: Final answer
    x = 3,013.17

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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.