Home / 5,441.61-8,161.20-2,155.44

Finding the Fourth Proportional to 5,441.61, 8,161.20 and 2,155.44

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Solution

The fourth proportional to 5,441.61, 8,161.20 and 2,155.44 is: 3,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.61 : 8,161.20 = 2,155.44 : x
  2. Step 2: Convert to fraction form
    5,441.61/8,161.20 = 2,155.44/x
  3. Step 3: Cross multiply
    5,441.61x = 8,161.20 × 2,155.44
  4. Step 4: Simplify right side
    5,441.61x = 17,590,976.93
  5. Step 5: Solve for x
    x = 17,590,976.93/5,441.61
  6. Step 6: Final answer
    x = 3,232.68

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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.