Home / 6,811.87-9,399.94-3,786.80

Finding the Fourth Proportional to 6,811.87, 9,399.94 and 3,786.80

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Solution

The fourth proportional to 6,811.87, 9,399.94 and 3,786.80 is: 5,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.87 : 9,399.94 = 3,786.80 : x
  2. Step 2: Convert to fraction form
    6,811.87/9,399.94 = 3,786.80/x
  3. Step 3: Cross multiply
    6,811.87x = 9,399.94 × 3,786.80
  4. Step 4: Simplify right side
    6,811.87x = 35,595,692.79
  5. Step 5: Solve for x
    x = 35,595,692.79/6,811.87
  6. Step 6: Final answer
    x = 5,225.54

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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.