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Finding the Fourth Proportional to 671.82, 925 and 610.31

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Solution

The fourth proportional to 671.82, 925 and 610.31 is: 840.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.82 : 925 = 610.31 : x
  2. Step 2: Convert to fraction form
    671.82/925 = 610.31/x
  3. Step 3: Cross multiply
    671.82x = 925 × 610.31
  4. Step 4: Simplify right side
    671.82x = 564,536.75
  5. Step 5: Solve for x
    x = 564,536.75/671.82
  6. Step 6: Final answer
    x = 840.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.