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Finding the Third Proportional to 756.42 and 1,104.05

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Solution

The third proportional to 756.42 and 1,104.05 is: 1,611.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.42 : 1,104.05 = 1,104.05 : x
  2. Step 2: Convert to fraction form
    756.42/1,104.05 = 1,104.05/x
  3. Step 3: Cross multiply
    756.42x = 1,104.05 × 1,104.05
  4. Step 4: Simplify right side
    756.42x = 1,218,919.50
  5. Step 5: Solve for x
    x = 1,218,919.50/756.42
  6. Step 6: Final answer
    x = 1,611.43

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.