Home / 6,216.16-8,581.68-3,979.44

Finding the Fourth Proportional to 6,216.16, 8,581.68 and 3,979.44

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Solution

The fourth proportional to 6,216.16, 8,581.68 and 3,979.44 is: 5,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.16 : 8,581.68 = 3,979.44 : x
  2. Step 2: Convert to fraction form
    6,216.16/8,581.68 = 3,979.44/x
  3. Step 3: Cross multiply
    6,216.16x = 8,581.68 × 3,979.44
  4. Step 4: Simplify right side
    6,216.16x = 34,150,280.66
  5. Step 5: Solve for x
    x = 34,150,280.66/6,216.16
  6. Step 6: Final answer
    x = 5,493.79

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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.