Home / 5,441.76-8,161.72-2,109.52

Finding the Fourth Proportional to 5,441.76, 8,161.72 and 2,109.52

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Solution

The fourth proportional to 5,441.76, 8,161.72 and 2,109.52 is: 3,163.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.76 : 8,161.72 = 2,109.52 : x
  2. Step 2: Convert to fraction form
    5,441.76/8,161.72 = 2,109.52/x
  3. Step 3: Cross multiply
    5,441.76x = 8,161.72 × 2,109.52
  4. Step 4: Simplify right side
    5,441.76x = 17,217,311.57
  5. Step 5: Solve for x
    x = 17,217,311.57/5,441.76
  6. Step 6: Final answer
    x = 3,163.92

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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.