Home / 3,091.88-4,266.80-1,694.64

Finding the Fourth Proportional to 3,091.88, 4,266.80 and 1,694.64

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Solution

The fourth proportional to 3,091.88, 4,266.80 and 1,694.64 is: 2,338.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.88 : 4,266.80 = 1,694.64 : x
  2. Step 2: Convert to fraction form
    3,091.88/4,266.80 = 1,694.64/x
  3. Step 3: Cross multiply
    3,091.88x = 4,266.80 × 1,694.64
  4. Step 4: Simplify right side
    3,091.88x = 7,230,689.95
  5. Step 5: Solve for x
    x = 7,230,689.95/3,091.88
  6. Step 6: Final answer
    x = 2,338.61

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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.