Home / 2,798.28-3,861.41-1,619.51

Finding the Fourth Proportional to 2,798.28, 3,861.41 and 1,619.51

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Solution

The fourth proportional to 2,798.28, 3,861.41 and 1,619.51 is: 2,234.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.28 : 3,861.41 = 1,619.51 : x
  2. Step 2: Convert to fraction form
    2,798.28/3,861.41 = 1,619.51/x
  3. Step 3: Cross multiply
    2,798.28x = 3,861.41 × 1,619.51
  4. Step 4: Simplify right side
    2,798.28x = 6,253,564.70
  5. Step 5: Solve for x
    x = 6,253,564.70/2,798.28
  6. Step 6: Final answer
    x = 2,234.79

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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.