Home / 5,192.88-7,788.36-2,719.92

Finding the Fourth Proportional to 5,192.88, 7,788.36 and 2,719.92

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Solution

The fourth proportional to 5,192.88, 7,788.36 and 2,719.92 is: 4,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.88 : 7,788.36 = 2,719.92 : x
  2. Step 2: Convert to fraction form
    5,192.88/7,788.36 = 2,719.92/x
  3. Step 3: Cross multiply
    5,192.88x = 7,788.36 × 2,719.92
  4. Step 4: Simplify right side
    5,192.88x = 21,183,716.13
  5. Step 5: Solve for x
    x = 21,183,716.13/5,192.88
  6. Step 6: Final answer
    x = 4,079.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.