Home / 6,216.75-8,579.12-3,422.25

Finding the Fourth Proportional to 6,216.75, 8,579.12 and 3,422.25

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Solution

The fourth proportional to 6,216.75, 8,579.12 and 3,422.25 is: 4,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.75 : 8,579.12 = 3,422.25 : x
  2. Step 2: Convert to fraction form
    6,216.75/8,579.12 = 3,422.25/x
  3. Step 3: Cross multiply
    6,216.75x = 8,579.12 × 3,422.25
  4. Step 4: Simplify right side
    6,216.75x = 29,359,876.31
  5. Step 5: Solve for x
    x = 29,359,876.31/6,216.75
  6. Step 6: Final answer
    x = 4,722.71

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Half scale
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Double scale
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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.