Home / 3,621.23-5,438.54-2,169.30

Finding the Fourth Proportional to 3,621.23, 5,438.54 and 2,169.30

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Solution

The fourth proportional to 3,621.23, 5,438.54 and 2,169.30 is: 3,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.23 : 5,438.54 = 2,169.30 : x
  2. Step 2: Convert to fraction form
    3,621.23/5,438.54 = 2,169.30/x
  3. Step 3: Cross multiply
    3,621.23x = 5,438.54 × 2,169.30
  4. Step 4: Simplify right side
    3,621.23x = 11,797,813.98
  5. Step 5: Solve for x
    x = 11,797,813.98/3,621.23
  6. Step 6: Final answer
    x = 3,257.96

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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.