Home / 2,798.20-3,861.27-1,619.35

Finding the Fourth Proportional to 2,798.20, 3,861.27 and 1,619.35

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Solution

The fourth proportional to 2,798.20, 3,861.27 and 1,619.35 is: 2,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.20 : 3,861.27 = 1,619.35 : x
  2. Step 2: Convert to fraction form
    2,798.20/3,861.27 = 1,619.35/x
  3. Step 3: Cross multiply
    2,798.20x = 3,861.27 × 1,619.35
  4. Step 4: Simplify right side
    2,798.20x = 6,252,747.57
  5. Step 5: Solve for x
    x = 6,252,747.57/2,798.20
  6. Step 6: Final answer
    x = 2,234.56

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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.