Home / 3,511.83-4,845.22-2,019.21

Finding the Fourth Proportional to 3,511.83, 4,845.22 and 2,019.21

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Solution

The fourth proportional to 3,511.83, 4,845.22 and 2,019.21 is: 2,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.83 : 4,845.22 = 2,019.21 : x
  2. Step 2: Convert to fraction form
    3,511.83/4,845.22 = 2,019.21/x
  3. Step 3: Cross multiply
    3,511.83x = 4,845.22 × 2,019.21
  4. Step 4: Simplify right side
    3,511.83x = 9,783,516.68
  5. Step 5: Solve for x
    x = 9,783,516.68/3,511.83
  6. Step 6: Final answer
    x = 2,785.87

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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.