Home / 6,912.28-10,350.35-3,785.78

Finding the Fourth Proportional to 6,912.28, 10,350.35 and 3,785.78

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Solution

The fourth proportional to 6,912.28, 10,350.35 and 3,785.78 is: 5,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.28 : 10,350.35 = 3,785.78 : x
  2. Step 2: Convert to fraction form
    6,912.28/10,350.35 = 3,785.78/x
  3. Step 3: Cross multiply
    6,912.28x = 10,350.35 × 3,785.78
  4. Step 4: Simplify right side
    6,912.28x = 39,184,164.43
  5. Step 5: Solve for x
    x = 39,184,164.43/6,912.28
  6. Step 6: Final answer
    x = 5,668.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.