Home / 2,798.15-3,861.14-1,619

Finding the Fourth Proportional to 2,798.15, 3,861.14 and 1,619

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Solution

The fourth proportional to 2,798.15, 3,861.14 and 1,619 is: 2,234.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.15 : 3,861.14 = 1,619 : x
  2. Step 2: Convert to fraction form
    2,798.15/3,861.14 = 1,619/x
  3. Step 3: Cross multiply
    2,798.15x = 3,861.14 × 1,619
  4. Step 4: Simplify right side
    2,798.15x = 6,251,191.73
  5. Step 5: Solve for x
    x = 6,251,191.73/2,798.15
  6. Step 6: Final answer
    x = 2,234.04

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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.