Home / 2,134.82-3,185.92-2,107.28

Finding the Fourth Proportional to 2,134.82, 3,185.92 and 2,107.28

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Solution

The fourth proportional to 2,134.82, 3,185.92 and 2,107.28 is: 3,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.82 : 3,185.92 = 2,107.28 : x
  2. Step 2: Convert to fraction form
    2,134.82/3,185.92 = 2,107.28/x
  3. Step 3: Cross multiply
    2,134.82x = 3,185.92 × 2,107.28
  4. Step 4: Simplify right side
    2,134.82x = 6,713,625.50
  5. Step 5: Solve for x
    x = 6,713,625.50/2,134.82
  6. Step 6: Final answer
    x = 3,144.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.