Home / 5,180.64-7,151.44-3,922.05

Finding the Fourth Proportional to 5,180.64, 7,151.44 and 3,922.05

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Solution

The fourth proportional to 5,180.64, 7,151.44 and 3,922.05 is: 5,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.64 : 7,151.44 = 3,922.05 : x
  2. Step 2: Convert to fraction form
    5,180.64/7,151.44 = 3,922.05/x
  3. Step 3: Cross multiply
    5,180.64x = 7,151.44 × 3,922.05
  4. Step 4: Simplify right side
    5,180.64x = 28,048,329.62
  5. Step 5: Solve for x
    x = 28,048,329.62/5,180.64
  6. Step 6: Final answer
    x = 5,414.06

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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.