Home / 2,790.11-3,850.52-1,611.26

Finding the Fourth Proportional to 2,790.11, 3,850.52 and 1,611.26

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Solution

The fourth proportional to 2,790.11, 3,850.52 and 1,611.26 is: 2,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.11 : 3,850.52 = 1,611.26 : x
  2. Step 2: Convert to fraction form
    2,790.11/3,850.52 = 1,611.26/x
  3. Step 3: Cross multiply
    2,790.11x = 3,850.52 × 1,611.26
  4. Step 4: Simplify right side
    2,790.11x = 6,204,161.55
  5. Step 5: Solve for x
    x = 6,204,161.55/2,790.11
  6. Step 6: Final answer
    x = 2,223.63

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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.