Home / 6,816.78-9,406.91-3,832.78

Finding the Fourth Proportional to 6,816.78, 9,406.91 and 3,832.78

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Solution

The fourth proportional to 6,816.78, 9,406.91 and 3,832.78 is: 5,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.78 : 9,406.91 = 3,832.78 : x
  2. Step 2: Convert to fraction form
    6,816.78/9,406.91 = 3,832.78/x
  3. Step 3: Cross multiply
    6,816.78x = 9,406.91 × 3,832.78
  4. Step 4: Simplify right side
    6,816.78x = 36,054,606.93
  5. Step 5: Solve for x
    x = 36,054,606.93/6,816.78
  6. Step 6: Final answer
    x = 5,289.10

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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.