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Finding the Fourth Proportional to 6,112.60, 9,168.90 and 2,216.50

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Solution

The fourth proportional to 6,112.60, 9,168.90 and 2,216.50 is: 3,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.60 : 9,168.90 = 2,216.50 : x
  2. Step 2: Convert to fraction form
    6,112.60/9,168.90 = 2,216.50/x
  3. Step 3: Cross multiply
    6,112.60x = 9,168.90 × 2,216.50
  4. Step 4: Simplify right side
    6,112.60x = 20,322,866.85
  5. Step 5: Solve for x
    x = 20,322,866.85/6,112.60
  6. Step 6: Final answer
    x = 3,324.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.