Home / 2,940.67-4,067.13-2,891.46

Finding the Fourth Proportional to 2,940.67, 4,067.13 and 2,891.46

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Solution

The fourth proportional to 2,940.67, 4,067.13 and 2,891.46 is: 3,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.67 : 4,067.13 = 2,891.46 : x
  2. Step 2: Convert to fraction form
    2,940.67/4,067.13 = 2,891.46/x
  3. Step 3: Cross multiply
    2,940.67x = 4,067.13 × 2,891.46
  4. Step 4: Simplify right side
    2,940.67x = 11,759,943.71
  5. Step 5: Solve for x
    x = 11,759,943.71/2,940.67
  6. Step 6: Final answer
    x = 3,999.08

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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.