Home / 5,087.92-7,021.11-2,849.80

Finding the Fourth Proportional to 5,087.92, 7,021.11 and 2,849.80

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Solution

The fourth proportional to 5,087.92, 7,021.11 and 2,849.80 is: 3,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.92 : 7,021.11 = 2,849.80 : x
  2. Step 2: Convert to fraction form
    5,087.92/7,021.11 = 2,849.80/x
  3. Step 3: Cross multiply
    5,087.92x = 7,021.11 × 2,849.80
  4. Step 4: Simplify right side
    5,087.92x = 20,008,759.28
  5. Step 5: Solve for x
    x = 20,008,759.28/5,087.92
  6. Step 6: Final answer
    x = 3,932.60

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1.5x scale

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.