Home / 5,449.30-8,161.80-4,212.70

Finding the Fourth Proportional to 5,449.30, 8,161.80 and 4,212.70

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Solution

The fourth proportional to 5,449.30, 8,161.80 and 4,212.70 is: 6,309.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.30 : 8,161.80 = 4,212.70 : x
  2. Step 2: Convert to fraction form
    5,449.30/8,161.80 = 4,212.70/x
  3. Step 3: Cross multiply
    5,449.30x = 8,161.80 × 4,212.70
  4. Step 4: Simplify right side
    5,449.30x = 34,383,214.86
  5. Step 5: Solve for x
    x = 34,383,214.86/5,449.30
  6. Step 6: Final answer
    x = 6,309.66

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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.