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Finding the Fourth Proportional to 6,612.79, 9,912.26 and 2,228.73

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Solution

The fourth proportional to 6,612.79, 9,912.26 and 2,228.73 is: 3,340.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.79 : 9,912.26 = 2,228.73 : x
  2. Step 2: Convert to fraction form
    6,612.79/9,912.26 = 2,228.73/x
  3. Step 3: Cross multiply
    6,612.79x = 9,912.26 × 2,228.73
  4. Step 4: Simplify right side
    6,612.79x = 22,091,756.80
  5. Step 5: Solve for x
    x = 22,091,756.80/6,612.79
  6. Step 6: Final answer
    x = 3,340.76

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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.