Home / 5,479.54-8,213.83-2,143.22

Finding the Fourth Proportional to 5,479.54, 8,213.83 and 2,143.22

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Solution

The fourth proportional to 5,479.54, 8,213.83 and 2,143.22 is: 3,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.54 : 8,213.83 = 2,143.22 : x
  2. Step 2: Convert to fraction form
    5,479.54/8,213.83 = 2,143.22/x
  3. Step 3: Cross multiply
    5,479.54x = 8,213.83 × 2,143.22
  4. Step 4: Simplify right side
    5,479.54x = 17,603,998.31
  5. Step 5: Solve for x
    x = 17,603,998.31/5,479.54
  6. Step 6: Final answer
    x = 3,212.68

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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.