Home / 3,255.89-4,890.39-1,942.21

Finding the Fourth Proportional to 3,255.89, 4,890.39 and 1,942.21

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Solution

The fourth proportional to 3,255.89, 4,890.39 and 1,942.21 is: 2,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.89 : 4,890.39 = 1,942.21 : x
  2. Step 2: Convert to fraction form
    3,255.89/4,890.39 = 1,942.21/x
  3. Step 3: Cross multiply
    3,255.89x = 4,890.39 × 1,942.21
  4. Step 4: Simplify right side
    3,255.89x = 9,498,174.12
  5. Step 5: Solve for x
    x = 9,498,174.12/3,255.89
  6. Step 6: Final answer
    x = 2,917.23

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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.