Home / 5,180.25-7,148.79-2,822.43

Finding the Fourth Proportional to 5,180.25, 7,148.79 and 2,822.43

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Solution

The fourth proportional to 5,180.25, 7,148.79 and 2,822.43 is: 3,894.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.25 : 7,148.79 = 2,822.43 : x
  2. Step 2: Convert to fraction form
    5,180.25/7,148.79 = 2,822.43/x
  3. Step 3: Cross multiply
    5,180.25x = 7,148.79 × 2,822.43
  4. Step 4: Simplify right side
    5,180.25x = 20,176,959.36
  5. Step 5: Solve for x
    x = 20,176,959.36/5,180.25
  6. Step 6: Final answer
    x = 3,894.98

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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.