Home / 5,516.72-8,278.17-4,286.60

Finding the Fourth Proportional to 5,516.72, 8,278.17 and 4,286.60

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Solution

The fourth proportional to 5,516.72, 8,278.17 and 4,286.60 is: 6,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.72 : 8,278.17 = 4,286.60 : x
  2. Step 2: Convert to fraction form
    5,516.72/8,278.17 = 4,286.60/x
  3. Step 3: Cross multiply
    5,516.72x = 8,278.17 × 4,286.60
  4. Step 4: Simplify right side
    5,516.72x = 35,485,203.52
  5. Step 5: Solve for x
    x = 35,485,203.52/5,516.72
  6. Step 6: Final answer
    x = 6,432.30

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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.