Home / 5,179.72-7,767.68-1,891.84

Finding the Fourth Proportional to 5,179.72, 7,767.68 and 1,891.84

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Solution

The fourth proportional to 5,179.72, 7,767.68 and 1,891.84 is: 2,837.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.72 : 7,767.68 = 1,891.84 : x
  2. Step 2: Convert to fraction form
    5,179.72/7,767.68 = 1,891.84/x
  3. Step 3: Cross multiply
    5,179.72x = 7,767.68 × 1,891.84
  4. Step 4: Simplify right side
    5,179.72x = 14,695,207.73
  5. Step 5: Solve for x
    x = 14,695,207.73/5,179.72
  6. Step 6: Final answer
    x = 2,837.07

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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.