Home / 4,189.44-6,287.04-2,138.88

Finding the Fourth Proportional to 4,189.44, 6,287.04 and 2,138.88

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Solution

The fourth proportional to 4,189.44, 6,287.04 and 2,138.88 is: 3,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.44 : 6,287.04 = 2,138.88 : x
  2. Step 2: Convert to fraction form
    4,189.44/6,287.04 = 2,138.88/x
  3. Step 3: Cross multiply
    4,189.44x = 6,287.04 × 2,138.88
  4. Step 4: Simplify right side
    4,189.44x = 13,447,224.12
  5. Step 5: Solve for x
    x = 13,447,224.12/4,189.44
  6. Step 6: Final answer
    x = 3,209.79

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1.5x scale

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.