Home / 2,912.06-4,022.80-2,766.26

Finding the Fourth Proportional to 2,912.06, 4,022.80 and 2,766.26

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Solution

The fourth proportional to 2,912.06, 4,022.80 and 2,766.26 is: 3,821.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.06 : 4,022.80 = 2,766.26 : x
  2. Step 2: Convert to fraction form
    2,912.06/4,022.80 = 2,766.26/x
  3. Step 3: Cross multiply
    2,912.06x = 4,022.80 × 2,766.26
  4. Step 4: Simplify right side
    2,912.06x = 11,128,110.73
  5. Step 5: Solve for x
    x = 11,128,110.73/2,912.06
  6. Step 6: Final answer
    x = 3,821.39

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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.