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Finding the Fourth Proportional to 6,626.42, 9,940.84 and 2,728.70

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Solution

The fourth proportional to 6,626.42, 9,940.84 and 2,728.70 is: 4,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.42 : 9,940.84 = 2,728.70 : x
  2. Step 2: Convert to fraction form
    6,626.42/9,940.84 = 2,728.70/x
  3. Step 3: Cross multiply
    6,626.42x = 9,940.84 × 2,728.70
  4. Step 4: Simplify right side
    6,626.42x = 27,125,570.11
  5. Step 5: Solve for x
    x = 27,125,570.11/6,626.42
  6. Step 6: Final answer
    x = 4,093.55

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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.