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Finding the Fourth Proportional to 3,847.88, 5,771.22 and 1,074.26

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Solution

The fourth proportional to 3,847.88, 5,771.22 and 1,074.26 is: 1,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.88 : 5,771.22 = 1,074.26 : x
  2. Step 2: Convert to fraction form
    3,847.88/5,771.22 = 1,074.26/x
  3. Step 3: Cross multiply
    3,847.88x = 5,771.22 × 1,074.26
  4. Step 4: Simplify right side
    3,847.88x = 6,199,790.80
  5. Step 5: Solve for x
    x = 6,199,790.80/3,847.88
  6. Step 6: Final answer
    x = 1,611.22

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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.