Home / 5,479.01-8,217.23-2,191.22

Finding the Fourth Proportional to 5,479.01, 8,217.23 and 2,191.22

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Solution

The fourth proportional to 5,479.01, 8,217.23 and 2,191.22 is: 3,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.01 : 8,217.23 = 2,191.22 : x
  2. Step 2: Convert to fraction form
    5,479.01/8,217.23 = 2,191.22/x
  3. Step 3: Cross multiply
    5,479.01x = 8,217.23 × 2,191.22
  4. Step 4: Simplify right side
    5,479.01x = 18,005,706.68
  5. Step 5: Solve for x
    x = 18,005,706.68/5,479.01
  6. Step 6: Final answer
    x = 3,286.31

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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.