Home / 2,814.28-3,883.58-1,619.21

Finding the Fourth Proportional to 2,814.28, 3,883.58 and 1,619.21

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Solution

The fourth proportional to 2,814.28, 3,883.58 and 1,619.21 is: 2,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.28 : 3,883.58 = 1,619.21 : x
  2. Step 2: Convert to fraction form
    2,814.28/3,883.58 = 1,619.21/x
  3. Step 3: Cross multiply
    2,814.28x = 3,883.58 × 1,619.21
  4. Step 4: Simplify right side
    2,814.28x = 6,288,339.26
  5. Step 5: Solve for x
    x = 6,288,339.26/2,814.28
  6. Step 6: Final answer
    x = 2,234.44

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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.