Home / 3,786.75-5,226.26-3,620.70

Finding the Fourth Proportional to 3,786.75, 5,226.26 and 3,620.70

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Solution

The fourth proportional to 3,786.75, 5,226.26 and 3,620.70 is: 4,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.75 : 5,226.26 = 3,620.70 : x
  2. Step 2: Convert to fraction form
    3,786.75/5,226.26 = 3,620.70/x
  3. Step 3: Cross multiply
    3,786.75x = 5,226.26 × 3,620.70
  4. Step 4: Simplify right side
    3,786.75x = 18,922,701.48
  5. Step 5: Solve for x
    x = 18,922,701.48/3,786.75
  6. Step 6: Final answer
    x = 4,997.08

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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.