Home / 5,479.57-8,216.90-3,399.49

Finding the Fourth Proportional to 5,479.57, 8,216.90 and 3,399.49

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Solution

The fourth proportional to 5,479.57, 8,216.90 and 3,399.49 is: 5,097.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.57 : 8,216.90 = 3,399.49 : x
  2. Step 2: Convert to fraction form
    5,479.57/8,216.90 = 3,399.49/x
  3. Step 3: Cross multiply
    5,479.57x = 8,216.90 × 3,399.49
  4. Step 4: Simplify right side
    5,479.57x = 27,933,269.38
  5. Step 5: Solve for x
    x = 27,933,269.38/5,479.57
  6. Step 6: Final answer
    x = 5,097.71

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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.