Home / 5,179.92-7,148.40-2,822.04

Finding the Fourth Proportional to 5,179.92, 7,148.40 and 2,822.04

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Solution

The fourth proportional to 5,179.92, 7,148.40 and 2,822.04 is: 3,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.92 : 7,148.40 = 2,822.04 : x
  2. Step 2: Convert to fraction form
    5,179.92/7,148.40 = 2,822.04/x
  3. Step 3: Cross multiply
    5,179.92x = 7,148.40 × 2,822.04
  4. Step 4: Simplify right side
    5,179.92x = 20,173,070.74
  5. Step 5: Solve for x
    x = 20,173,070.74/5,179.92
  6. Step 6: Final answer
    x = 3,894.48

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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.