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Finding the Fourth Proportional to 5,479.55, 8,206.96 and 3,843.41

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Solution

The fourth proportional to 5,479.55, 8,206.96 and 3,843.41 is: 5,756.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.55 : 8,206.96 = 3,843.41 : x
  2. Step 2: Convert to fraction form
    5,479.55/8,206.96 = 3,843.41/x
  3. Step 3: Cross multiply
    5,479.55x = 8,206.96 × 3,843.41
  4. Step 4: Simplify right side
    5,479.55x = 31,542,712.13
  5. Step 5: Solve for x
    x = 31,542,712.13/5,479.55
  6. Step 6: Final answer
    x = 5,756.44

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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.