Home / 6,190.75-8,543.78-3,396.79

Finding the Fourth Proportional to 6,190.75, 8,543.78 and 3,396.79

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Solution

The fourth proportional to 6,190.75, 8,543.78 and 3,396.79 is: 4,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,190.75 : 8,543.78 = 3,396.79 : x
  2. Step 2: Convert to fraction form
    6,190.75/8,543.78 = 3,396.79/x
  3. Step 3: Cross multiply
    6,190.75x = 8,543.78 × 3,396.79
  4. Step 4: Simplify right side
    6,190.75x = 29,021,426.47
  5. Step 5: Solve for x
    x = 29,021,426.47/6,190.75
  6. Step 6: Final answer
    x = 4,687.87

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Half scale
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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.