Home / 10,772.28-16,157.97-2,980.89

Finding the Fourth Proportional to 10,772.28, 16,157.97 and 2,980.89

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Solution

The fourth proportional to 10,772.28, 16,157.97 and 2,980.89 is: 4,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,772.28 : 16,157.97 = 2,980.89 : x
  2. Step 2: Convert to fraction form
    10,772.28/16,157.97 = 2,980.89/x
  3. Step 3: Cross multiply
    10,772.28x = 16,157.97 × 2,980.89
  4. Step 4: Simplify right side
    10,772.28x = 48,165,131.19
  5. Step 5: Solve for x
    x = 48,165,131.19/10,772.28
  6. Step 6: Final answer
    x = 4,471.21

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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.