Home / 3,786.92-5,229.19-3,617.81

Finding the Fourth Proportional to 3,786.92, 5,229.19 and 3,617.81

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Solution

The fourth proportional to 3,786.92, 5,229.19 and 3,617.81 is: 4,995.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.92 : 5,229.19 = 3,617.81 : x
  2. Step 2: Convert to fraction form
    3,786.92/5,229.19 = 3,617.81/x
  3. Step 3: Cross multiply
    3,786.92x = 5,229.19 × 3,617.81
  4. Step 4: Simplify right side
    3,786.92x = 18,918,215.87
  5. Step 5: Solve for x
    x = 18,918,215.87/3,786.92
  6. Step 6: Final answer
    x = 4,995.67

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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.