Home / 3,289.80-4,538.22-2,227.62

Finding the Fourth Proportional to 3,289.80, 4,538.22 and 2,227.62

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Solution

The fourth proportional to 3,289.80, 4,538.22 and 2,227.62 is: 3,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.80 : 4,538.22 = 2,227.62 : x
  2. Step 2: Convert to fraction form
    3,289.80/4,538.22 = 2,227.62/x
  3. Step 3: Cross multiply
    3,289.80x = 4,538.22 × 2,227.62
  4. Step 4: Simplify right side
    3,289.80x = 10,109,429.64
  5. Step 5: Solve for x
    x = 10,109,429.64/3,289.80
  6. Step 6: Final answer
    x = 3,072.96

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1.5x scale

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.