Home / 5,179.96-7,148.31-2,822.09

Finding the Fourth Proportional to 5,179.96, 7,148.31 and 2,822.09

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Solution

The fourth proportional to 5,179.96, 7,148.31 and 2,822.09 is: 3,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.96 : 7,148.31 = 2,822.09 : x
  2. Step 2: Convert to fraction form
    5,179.96/7,148.31 = 2,822.09/x
  3. Step 3: Cross multiply
    5,179.96x = 7,148.31 × 2,822.09
  4. Step 4: Simplify right side
    5,179.96x = 20,173,174.17
  5. Step 5: Solve for x
    x = 20,173,174.17/5,179.96
  6. Step 6: Final answer
    x = 3,894.47

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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.