Home / 3,089.88-4,261.82-1,969.64

Finding the Fourth Proportional to 3,089.88, 4,261.82 and 1,969.64

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Solution

The fourth proportional to 3,089.88, 4,261.82 and 1,969.64 is: 2,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.88 : 4,261.82 = 1,969.64 : x
  2. Step 2: Convert to fraction form
    3,089.88/4,261.82 = 1,969.64/x
  3. Step 3: Cross multiply
    3,089.88x = 4,261.82 × 1,969.64
  4. Step 4: Simplify right side
    3,089.88x = 8,394,251.14
  5. Step 5: Solve for x
    x = 8,394,251.14/3,089.88
  6. Step 6: Final answer
    x = 2,716.69

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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.