Home / 5,057.44-6,979.47-2,819.61

Finding the Fourth Proportional to 5,057.44, 6,979.47 and 2,819.61

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Solution

The fourth proportional to 5,057.44, 6,979.47 and 2,819.61 is: 3,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.44 : 6,979.47 = 2,819.61 : x
  2. Step 2: Convert to fraction form
    5,057.44/6,979.47 = 2,819.61/x
  3. Step 3: Cross multiply
    5,057.44x = 6,979.47 × 2,819.61
  4. Step 4: Simplify right side
    5,057.44x = 19,679,372.83
  5. Step 5: Solve for x
    x = 19,679,372.83/5,057.44
  6. Step 6: Final answer
    x = 3,891.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.