Home / 3,675.92-5,511.24-1,920.56

Finding the Fourth Proportional to 3,675.92, 5,511.24 and 1,920.56

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Solution

The fourth proportional to 3,675.92, 5,511.24 and 1,920.56 is: 2,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.92 : 5,511.24 = 1,920.56 : x
  2. Step 2: Convert to fraction form
    3,675.92/5,511.24 = 1,920.56/x
  3. Step 3: Cross multiply
    3,675.92x = 5,511.24 × 1,920.56
  4. Step 4: Simplify right side
    3,675.92x = 10,584,667.09
  5. Step 5: Solve for x
    x = 10,584,667.09/3,675.92
  6. Step 6: Final answer
    x = 2,879.46

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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.