Home / 3,238.72-4,469.24-1,911.94

Finding the Fourth Proportional to 3,238.72, 4,469.24 and 1,911.94

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Solution

The fourth proportional to 3,238.72, 4,469.24 and 1,911.94 is: 2,638.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.72 : 4,469.24 = 1,911.94 : x
  2. Step 2: Convert to fraction form
    3,238.72/4,469.24 = 1,911.94/x
  3. Step 3: Cross multiply
    3,238.72x = 4,469.24 × 1,911.94
  4. Step 4: Simplify right side
    3,238.72x = 8,544,912.33
  5. Step 5: Solve for x
    x = 8,544,912.33/3,238.72
  6. Step 6: Final answer
    x = 2,638.36

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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.