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Finding the Fourth Proportional to 6,611.06, 9,117.22 and 4,375.20

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Solution

The fourth proportional to 6,611.06, 9,117.22 and 4,375.20 is: 6,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.06 : 9,117.22 = 4,375.20 : x
  2. Step 2: Convert to fraction form
    6,611.06/9,117.22 = 4,375.20/x
  3. Step 3: Cross multiply
    6,611.06x = 9,117.22 × 4,375.20
  4. Step 4: Simplify right side
    6,611.06x = 39,889,660.94
  5. Step 5: Solve for x
    x = 39,889,660.94/6,611.06
  6. Step 6: Final answer
    x = 6,033.78

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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.