Home / 10,772.76-16,157.31-2,979.75

Finding the Fourth Proportional to 10,772.76, 16,157.31 and 2,979.75

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Solution

The fourth proportional to 10,772.76, 16,157.31 and 2,979.75 is: 4,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,772.76 : 16,157.31 = 2,979.75 : x
  2. Step 2: Convert to fraction form
    10,772.76/16,157.31 = 2,979.75/x
  3. Step 3: Cross multiply
    10,772.76x = 16,157.31 × 2,979.75
  4. Step 4: Simplify right side
    10,772.76x = 48,144,744.47
  5. Step 5: Solve for x
    x = 48,144,744.47/10,772.76
  6. Step 6: Final answer
    x = 4,469.12

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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.