Home / 3,238.83-4,469.66-1,912.05

Finding the Fourth Proportional to 3,238.83, 4,469.66 and 1,912.05

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Solution

The fourth proportional to 3,238.83, 4,469.66 and 1,912.05 is: 2,638.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.83 : 4,469.66 = 1,912.05 : x
  2. Step 2: Convert to fraction form
    3,238.83/4,469.66 = 1,912.05/x
  3. Step 3: Cross multiply
    3,238.83x = 4,469.66 × 1,912.05
  4. Step 4: Simplify right side
    3,238.83x = 8,546,203.84
  5. Step 5: Solve for x
    x = 8,546,203.84/3,238.83
  6. Step 6: Final answer
    x = 2,638.67

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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.