Home / 5,179.91-7,148.21-2,822.06

Finding the Fourth Proportional to 5,179.91, 7,148.21 and 2,822.06

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Solution

The fourth proportional to 5,179.91, 7,148.21 and 2,822.06 is: 3,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.91 : 7,148.21 = 2,822.06 : x
  2. Step 2: Convert to fraction form
    5,179.91/7,148.21 = 2,822.06/x
  3. Step 3: Cross multiply
    5,179.91x = 7,148.21 × 2,822.06
  4. Step 4: Simplify right side
    5,179.91x = 20,172,648.83
  5. Step 5: Solve for x
    x = 20,172,648.83/5,179.91
  6. Step 6: Final answer
    x = 3,894.40

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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.