Home / 5,622-8,436.78-3,372.36

Finding the Fourth Proportional to 5,622, 8,436.78 and 3,372.36

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Solution

The fourth proportional to 5,622, 8,436.78 and 3,372.36 is: 5,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622 : 8,436.78 = 3,372.36 : x
  2. Step 2: Convert to fraction form
    5,622/8,436.78 = 3,372.36/x
  3. Step 3: Cross multiply
    5,622x = 8,436.78 × 3,372.36
  4. Step 4: Simplify right side
    5,622x = 28,451,859.40
  5. Step 5: Solve for x
    x = 28,451,859.40/5,622
  6. Step 6: Final answer
    x = 5,060.81

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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.