Home / 4,189.28-6,286.08-1,997.60

Finding the Fourth Proportional to 4,189.28, 6,286.08 and 1,997.60

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Solution

The fourth proportional to 4,189.28, 6,286.08 and 1,997.60 is: 2,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.28 : 6,286.08 = 1,997.60 : x
  2. Step 2: Convert to fraction form
    4,189.28/6,286.08 = 1,997.60/x
  3. Step 3: Cross multiply
    4,189.28x = 6,286.08 × 1,997.60
  4. Step 4: Simplify right side
    4,189.28x = 12,557,073.41
  5. Step 5: Solve for x
    x = 12,557,073.41/4,189.28
  6. Step 6: Final answer
    x = 2,997.43

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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.