Home / 3,511.72-4,845.90-2,019.52

Finding the Fourth Proportional to 3,511.72, 4,845.90 and 2,019.52

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Solution

The fourth proportional to 3,511.72, 4,845.90 and 2,019.52 is: 2,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.72 : 4,845.90 = 2,019.52 : x
  2. Step 2: Convert to fraction form
    3,511.72/4,845.90 = 2,019.52/x
  3. Step 3: Cross multiply
    3,511.72x = 4,845.90 × 2,019.52
  4. Step 4: Simplify right side
    3,511.72x = 9,786,391.97
  5. Step 5: Solve for x
    x = 9,786,391.97/3,511.72
  6. Step 6: Final answer
    x = 2,786.78

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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.