Home / 2,772.33-3,826.22-1,778.73

Finding the Fourth Proportional to 2,772.33, 3,826.22 and 1,778.73

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Solution

The fourth proportional to 2,772.33, 3,826.22 and 1,778.73 is: 2,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.33 : 3,826.22 = 1,778.73 : x
  2. Step 2: Convert to fraction form
    2,772.33/3,826.22 = 1,778.73/x
  3. Step 3: Cross multiply
    2,772.33x = 3,826.22 × 1,778.73
  4. Step 4: Simplify right side
    2,772.33x = 6,805,803.41
  5. Step 5: Solve for x
    x = 6,805,803.41/2,772.33
  6. Step 6: Final answer
    x = 2,454.90

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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.