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Finding the Third Proportional to 909.38 and 1,727.63

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Solution

The third proportional to 909.38 and 1,727.63 is: 3,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    909.38 : 1,727.63 = 1,727.63 : x
  2. Step 2: Convert to fraction form
    909.38/1,727.63 = 1,727.63/x
  3. Step 3: Cross multiply
    909.38x = 1,727.63 × 1,727.63
  4. Step 4: Simplify right side
    909.38x = 2,984,688.14
  5. Step 5: Solve for x
    x = 2,984,688.14/909.38
  6. Step 6: Final answer
    x = 3,282.13

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.