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Finding the Fourth Proportional to 3,375.86, 4,658.94 and 1,959.92

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Solution

The fourth proportional to 3,375.86, 4,658.94 and 1,959.92 is: 2,704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.86 : 4,658.94 = 1,959.92 : x
  2. Step 2: Convert to fraction form
    3,375.86/4,658.94 = 1,959.92/x
  3. Step 3: Cross multiply
    3,375.86x = 4,658.94 × 1,959.92
  4. Step 4: Simplify right side
    3,375.86x = 9,131,149.68
  5. Step 5: Solve for x
    x = 9,131,149.68/3,375.86
  6. Step 6: Final answer
    x = 2,704.84

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1.5x scale

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.