Home / 3,906.83-5,391.90-2,228.60

Finding the Fourth Proportional to 3,906.83, 5,391.90 and 2,228.60

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Solution

The fourth proportional to 3,906.83, 5,391.90 and 2,228.60 is: 3,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.83 : 5,391.90 = 2,228.60 : x
  2. Step 2: Convert to fraction form
    3,906.83/5,391.90 = 2,228.60/x
  3. Step 3: Cross multiply
    3,906.83x = 5,391.90 × 2,228.60
  4. Step 4: Simplify right side
    3,906.83x = 12,016,361.38
  5. Step 5: Solve for x
    x = 12,016,361.38/3,906.83
  6. Step 6: Final answer
    x = 3,075.74

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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.