Home / 3,450.72-4,761.85-1,958.61

Finding the Fourth Proportional to 3,450.72, 4,761.85 and 1,958.61

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Solution

The fourth proportional to 3,450.72, 4,761.85 and 1,958.61 is: 2,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.72 : 4,761.85 = 1,958.61 : x
  2. Step 2: Convert to fraction form
    3,450.72/4,761.85 = 1,958.61/x
  3. Step 3: Cross multiply
    3,450.72x = 4,761.85 × 1,958.61
  4. Step 4: Simplify right side
    3,450.72x = 9,326,597.24
  5. Step 5: Solve for x
    x = 9,326,597.24/3,450.72
  6. Step 6: Final answer
    x = 2,702.80

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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.