Home / 10,771.20-16,157.44-2,979.84

Finding the Fourth Proportional to 10,771.20, 16,157.44 and 2,979.84

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Solution

The fourth proportional to 10,771.20, 16,157.44 and 2,979.84 is: 4,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,771.20 : 16,157.44 = 2,979.84 : x
  2. Step 2: Convert to fraction form
    10,771.20/16,157.44 = 2,979.84/x
  3. Step 3: Cross multiply
    10,771.20x = 16,157.44 × 2,979.84
  4. Step 4: Simplify right side
    10,771.20x = 48,146,586.01
  5. Step 5: Solve for x
    x = 48,146,586.01/10,771.20
  6. Step 6: Final answer
    x = 4,469.94

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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.