Home / 6,694.28-9,238.26-3,898.76

Finding the Fourth Proportional to 6,694.28, 9,238.26 and 3,898.76

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Solution

The fourth proportional to 6,694.28, 9,238.26 and 3,898.76 is: 5,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,694.28 : 9,238.26 = 3,898.76 : x
  2. Step 2: Convert to fraction form
    6,694.28/9,238.26 = 3,898.76/x
  3. Step 3: Cross multiply
    6,694.28x = 9,238.26 × 3,898.76
  4. Step 4: Simplify right side
    6,694.28x = 36,017,758.56
  5. Step 5: Solve for x
    x = 36,017,758.56/6,694.28
  6. Step 6: Final answer
    x = 5,380.38

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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.