Home / 5,179.95-7,148.39-2,822.11

Finding the Fourth Proportional to 5,179.95, 7,148.39 and 2,822.11

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Solution

The fourth proportional to 5,179.95, 7,148.39 and 2,822.11 is: 3,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.95 : 7,148.39 = 2,822.11 : x
  2. Step 2: Convert to fraction form
    5,179.95/7,148.39 = 2,822.11/x
  3. Step 3: Cross multiply
    5,179.95x = 7,148.39 × 2,822.11
  4. Step 4: Simplify right side
    5,179.95x = 20,173,510.92
  5. Step 5: Solve for x
    x = 20,173,510.92/5,179.95
  6. Step 6: Final answer
    x = 3,894.54

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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.