Home / 5,456.88-8,179.44-2,680.32

Finding the Fourth Proportional to 5,456.88, 8,179.44 and 2,680.32

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Solution

The fourth proportional to 5,456.88, 8,179.44 and 2,680.32 is: 4,017.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.88 : 8,179.44 = 2,680.32 : x
  2. Step 2: Convert to fraction form
    5,456.88/8,179.44 = 2,680.32/x
  3. Step 3: Cross multiply
    5,456.88x = 8,179.44 × 2,680.32
  4. Step 4: Simplify right side
    5,456.88x = 21,923,516.62
  5. Step 5: Solve for x
    x = 21,923,516.62/5,456.88
  6. Step 6: Final answer
    x = 4,017.59

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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.