Home / 2,856.22-4,282.48-1,879.36

Finding the Fourth Proportional to 2,856.22, 4,282.48 and 1,879.36

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Solution

The fourth proportional to 2,856.22, 4,282.48 and 1,879.36 is: 2,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.22 : 4,282.48 = 1,879.36 : x
  2. Step 2: Convert to fraction form
    2,856.22/4,282.48 = 1,879.36/x
  3. Step 3: Cross multiply
    2,856.22x = 4,282.48 × 1,879.36
  4. Step 4: Simplify right side
    2,856.22x = 8,048,321.61
  5. Step 5: Solve for x
    x = 8,048,321.61/2,856.22
  6. Step 6: Final answer
    x = 2,817.82

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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.