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Finding the Fourth Proportional to 3,998.06, 5,997.69 and 1,806.80

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Solution

The fourth proportional to 3,998.06, 5,997.69 and 1,806.80 is: 2,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.06 : 5,997.69 = 1,806.80 : x
  2. Step 2: Convert to fraction form
    3,998.06/5,997.69 = 1,806.80/x
  3. Step 3: Cross multiply
    3,998.06x = 5,997.69 × 1,806.80
  4. Step 4: Simplify right side
    3,998.06x = 10,836,626.29
  5. Step 5: Solve for x
    x = 10,836,626.29/3,998.06
  6. Step 6: Final answer
    x = 2,710.47

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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.