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Finding the Third Proportional to 722.75 and 1,571.75

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Solution

The third proportional to 722.75 and 1,571.75 is: 3,418.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.75 : 1,571.75 = 1,571.75 : x
  2. Step 2: Convert to fraction form
    722.75/1,571.75 = 1,571.75/x
  3. Step 3: Cross multiply
    722.75x = 1,571.75 × 1,571.75
  4. Step 4: Simplify right side
    722.75x = 2,470,398.06
  5. Step 5: Solve for x
    x = 2,470,398.06/722.75
  6. Step 6: Final answer
    x = 3,418.05

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.