Home / 3,238.67-4,469.04-1,912.16

Finding the Fourth Proportional to 3,238.67, 4,469.04 and 1,912.16

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Solution

The fourth proportional to 3,238.67, 4,469.04 and 1,912.16 is: 2,638.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.67 : 4,469.04 = 1,912.16 : x
  2. Step 2: Convert to fraction form
    3,238.67/4,469.04 = 1,912.16/x
  3. Step 3: Cross multiply
    3,238.67x = 4,469.04 × 1,912.16
  4. Step 4: Simplify right side
    3,238.67x = 8,545,530.70
  5. Step 5: Solve for x
    x = 8,545,530.70/3,238.67
  6. Step 6: Final answer
    x = 2,638.59

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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.