Home / 3,922.85-5,912.48-3,381.57

Finding the Fourth Proportional to 3,922.85, 5,912.48 and 3,381.57

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Solution

The fourth proportional to 3,922.85, 5,912.48 and 3,381.57 is: 5,096.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.85 : 5,912.48 = 3,381.57 : x
  2. Step 2: Convert to fraction form
    3,922.85/5,912.48 = 3,381.57/x
  3. Step 3: Cross multiply
    3,922.85x = 5,912.48 × 3,381.57
  4. Step 4: Simplify right side
    3,922.85x = 19,993,464.99
  5. Step 5: Solve for x
    x = 19,993,464.99/3,922.85
  6. Step 6: Final answer
    x = 5,096.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.