Home / 6,245.78-8,617.11-4,122.37

Finding the Fourth Proportional to 6,245.78, 8,617.11 and 4,122.37

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Solution

The fourth proportional to 6,245.78, 8,617.11 and 4,122.37 is: 5,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.78 : 8,617.11 = 4,122.37 : x
  2. Step 2: Convert to fraction form
    6,245.78/8,617.11 = 4,122.37/x
  3. Step 3: Cross multiply
    6,245.78x = 8,617.11 × 4,122.37
  4. Step 4: Simplify right side
    6,245.78x = 35,522,872.67
  5. Step 5: Solve for x
    x = 35,522,872.67/6,245.78
  6. Step 6: Final answer
    x = 5,687.50

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Half 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.