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Finding the Fourth Proportional to 2,173.41, 3,257.82 and 712.17

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Solution

The fourth proportional to 2,173.41, 3,257.82 and 712.17 is: 1,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.41 : 3,257.82 = 712.17 : x
  2. Step 2: Convert to fraction form
    2,173.41/3,257.82 = 712.17/x
  3. Step 3: Cross multiply
    2,173.41x = 3,257.82 × 712.17
  4. Step 4: Simplify right side
    2,173.41x = 2,320,121.67
  5. Step 5: Solve for x
    x = 2,320,121.67/2,173.41
  6. Step 6: Final answer
    x = 1,067.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.