Home / 6,238.62-8,607.49-3,847.78

Finding the Fourth Proportional to 6,238.62, 8,607.49 and 3,847.78

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Solution

The fourth proportional to 6,238.62, 8,607.49 and 3,847.78 is: 5,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.62 : 8,607.49 = 3,847.78 : x
  2. Step 2: Convert to fraction form
    6,238.62/8,607.49 = 3,847.78/x
  3. Step 3: Cross multiply
    6,238.62x = 8,607.49 × 3,847.78
  4. Step 4: Simplify right side
    6,238.62x = 33,119,727.87
  5. Step 5: Solve for x
    x = 33,119,727.87/6,238.62
  6. Step 6: Final answer
    x = 5,308.82

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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.