Home / 5,443.20-8,174.40-4,213.60

Finding the Fourth Proportional to 5,443.20, 8,174.40 and 4,213.60

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Solution

The fourth proportional to 5,443.20, 8,174.40 and 4,213.60 is: 6,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.20 : 8,174.40 = 4,213.60 : x
  2. Step 2: Convert to fraction form
    5,443.20/8,174.40 = 4,213.60/x
  3. Step 3: Cross multiply
    5,443.20x = 8,174.40 × 4,213.60
  4. Step 4: Simplify right side
    5,443.20x = 34,443,651.84
  5. Step 5: Solve for x
    x = 34,443,651.84/5,443.20
  6. Step 6: Final answer
    x = 6,327.83

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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.