Home / 2,790.23-3,850.33-1,611.27

Finding the Fourth Proportional to 2,790.23, 3,850.33 and 1,611.27

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Solution

The fourth proportional to 2,790.23, 3,850.33 and 1,611.27 is: 2,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.23 : 3,850.33 = 1,611.27 : x
  2. Step 2: Convert to fraction form
    2,790.23/3,850.33 = 1,611.27/x
  3. Step 3: Cross multiply
    2,790.23x = 3,850.33 × 1,611.27
  4. Step 4: Simplify right side
    2,790.23x = 6,203,913.16
  5. Step 5: Solve for x
    x = 6,203,913.16/2,790.23
  6. Step 6: Final answer
    x = 2,223.45

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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.