Home / 2,940.12-4,427.78-2,677.68

Finding the Fourth Proportional to 2,940.12, 4,427.78 and 2,677.68

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Solution

The fourth proportional to 2,940.12, 4,427.78 and 2,677.68 is: 4,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.12 : 4,427.78 = 2,677.68 : x
  2. Step 2: Convert to fraction form
    2,940.12/4,427.78 = 2,677.68/x
  3. Step 3: Cross multiply
    2,940.12x = 4,427.78 × 2,677.68
  4. Step 4: Simplify right side
    2,940.12x = 11,856,177.95
  5. Step 5: Solve for x
    x = 11,856,177.95/2,940.12
  6. Step 6: Final answer
    x = 4,032.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.