Home / 2,836.96-4,251.78-2,290.21

Finding the Fourth Proportional to 2,836.96, 4,251.78 and 2,290.21

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Solution

The fourth proportional to 2,836.96, 4,251.78 and 2,290.21 is: 3,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.96 : 4,251.78 = 2,290.21 : x
  2. Step 2: Convert to fraction form
    2,836.96/4,251.78 = 2,290.21/x
  3. Step 3: Cross multiply
    2,836.96x = 4,251.78 × 2,290.21
  4. Step 4: Simplify right side
    2,836.96x = 9,737,458.44
  5. Step 5: Solve for x
    x = 9,737,458.44/2,836.96
  6. Step 6: Final answer
    x = 3,432.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.