Home / 3,238.58-4,469.00-1,912.03

Finding the Fourth Proportional to 3,238.58, 4,469.00 and 1,912.03

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Solution

The fourth proportional to 3,238.58, 4,469.00 and 1,912.03 is: 2,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.58 : 4,469.00 = 1,912.03 : x
  2. Step 2: Convert to fraction form
    3,238.58/4,469.00 = 1,912.03/x
  3. Step 3: Cross multiply
    3,238.58x = 4,469.00 × 1,912.03
  4. Step 4: Simplify right side
    3,238.58x = 8,544,859.28
  5. Step 5: Solve for x
    x = 8,544,859.28/3,238.58
  6. Step 6: Final answer
    x = 2,638.46

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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.