Home / 2,778.94-4,162.92-2,159.26

Finding the Fourth Proportional to 2,778.94, 4,162.92 and 2,159.26

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Solution

The fourth proportional to 2,778.94, 4,162.92 and 2,159.26 is: 3,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.94 : 4,162.92 = 2,159.26 : x
  2. Step 2: Convert to fraction form
    2,778.94/4,162.92 = 2,159.26/x
  3. Step 3: Cross multiply
    2,778.94x = 4,162.92 × 2,159.26
  4. Step 4: Simplify right side
    2,778.94x = 8,988,826.64
  5. Step 5: Solve for x
    x = 8,988,826.64/2,778.94
  6. Step 6: Final answer
    x = 3,234.62

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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.