Home / 3,619.80-5,426.88-2,193.96

Finding the Fourth Proportional to 3,619.80, 5,426.88 and 2,193.96

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Solution

The fourth proportional to 3,619.80, 5,426.88 and 2,193.96 is: 3,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.80 : 5,426.88 = 2,193.96 : x
  2. Step 2: Convert to fraction form
    3,619.80/5,426.88 = 2,193.96/x
  3. Step 3: Cross multiply
    3,619.80x = 5,426.88 × 2,193.96
  4. Step 4: Simplify right side
    3,619.80x = 11,906,357.64
  5. Step 5: Solve for x
    x = 11,906,357.64/3,619.80
  6. Step 6: Final answer
    x = 3,289.23

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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.