Home / 3,812.42-5,261.82-2,219.87

Finding the Fourth Proportional to 3,812.42, 5,261.82 and 2,219.87

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Solution

The fourth proportional to 3,812.42, 5,261.82 and 2,219.87 is: 3,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.42 : 5,261.82 = 2,219.87 : x
  2. Step 2: Convert to fraction form
    3,812.42/5,261.82 = 2,219.87/x
  3. Step 3: Cross multiply
    3,812.42x = 5,261.82 × 2,219.87
  4. Step 4: Simplify right side
    3,812.42x = 11,680,545.26
  5. Step 5: Solve for x
    x = 11,680,545.26/3,812.42
  6. Step 6: Final answer
    x = 3,063.81

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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.