Home / 4,189.20-5,783.04-3,198.57

Finding the Fourth Proportional to 4,189.20, 5,783.04 and 3,198.57

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Solution

The fourth proportional to 4,189.20, 5,783.04 and 3,198.57 is: 4,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.20 : 5,783.04 = 3,198.57 : x
  2. Step 2: Convert to fraction form
    4,189.20/5,783.04 = 3,198.57/x
  3. Step 3: Cross multiply
    4,189.20x = 5,783.04 × 3,198.57
  4. Step 4: Simplify right side
    4,189.20x = 18,497,458.25
  5. Step 5: Solve for x
    x = 18,497,458.25/4,189.20
  6. Step 6: Final answer
    x = 4,415.51

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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.