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Finding the Fourth Proportional to 3,469.96, 5,204.94 and 872.92

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Solution

The fourth proportional to 3,469.96, 5,204.94 and 872.92 is: 1,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.96 : 5,204.94 = 872.92 : x
  2. Step 2: Convert to fraction form
    3,469.96/5,204.94 = 872.92/x
  3. Step 3: Cross multiply
    3,469.96x = 5,204.94 × 872.92
  4. Step 4: Simplify right side
    3,469.96x = 4,543,496.22
  5. Step 5: Solve for x
    x = 4,543,496.22/3,469.96
  6. Step 6: Final answer
    x = 1,309.38

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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.