Home / 2,836.41-3,917.75-2,049.21

Finding the Fourth Proportional to 2,836.41, 3,917.75 and 2,049.21

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Solution

The fourth proportional to 2,836.41, 3,917.75 and 2,049.21 is: 2,830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.41 : 3,917.75 = 2,049.21 : x
  2. Step 2: Convert to fraction form
    2,836.41/3,917.75 = 2,049.21/x
  3. Step 3: Cross multiply
    2,836.41x = 3,917.75 × 2,049.21
  4. Step 4: Simplify right side
    2,836.41x = 8,028,282.23
  5. Step 5: Solve for x
    x = 8,028,282.23/2,836.41
  6. Step 6: Final answer
    x = 2,830.44

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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.