Home / 2,856.21-4,284.66-1,100.80

Finding the Fourth Proportional to 2,856.21, 4,284.66 and 1,100.80

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Solution

The fourth proportional to 2,856.21, 4,284.66 and 1,100.80 is: 1,651.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.21 : 4,284.66 = 1,100.80 : x
  2. Step 2: Convert to fraction form
    2,856.21/4,284.66 = 1,100.80/x
  3. Step 3: Cross multiply
    2,856.21x = 4,284.66 × 1,100.80
  4. Step 4: Simplify right side
    2,856.21x = 4,716,553.73
  5. Step 5: Solve for x
    x = 4,716,553.73/2,856.21
  6. Step 6: Final answer
    x = 1,651.33

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1.5x scale

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.