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Finding the Fourth Proportional to 2,173.96, 3,261.44 and 634.96

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Solution

The fourth proportional to 2,173.96, 3,261.44 and 634.96 is: 952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.96 : 3,261.44 = 634.96 : x
  2. Step 2: Convert to fraction form
    2,173.96/3,261.44 = 634.96/x
  3. Step 3: Cross multiply
    2,173.96x = 3,261.44 × 634.96
  4. Step 4: Simplify right side
    2,173.96x = 2,070,883.94
  5. Step 5: Solve for x
    x = 2,070,883.94/2,173.96
  6. Step 6: Final answer
    x = 952.59

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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.