Home / 5,057.64-6,979.37-2,819.61

Finding the Fourth Proportional to 5,057.64, 6,979.37 and 2,819.61

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Solution

The fourth proportional to 5,057.64, 6,979.37 and 2,819.61 is: 3,890.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.64 : 6,979.37 = 2,819.61 : x
  2. Step 2: Convert to fraction form
    5,057.64/6,979.37 = 2,819.61/x
  3. Step 3: Cross multiply
    5,057.64x = 6,979.37 × 2,819.61
  4. Step 4: Simplify right side
    5,057.64x = 19,679,087.35
  5. Step 5: Solve for x
    x = 19,679,087.35/5,057.64
  6. Step 6: Final answer
    x = 3,890.96

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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.