Home / 4,990.28-7,481.27-2,768.99

Finding the Fourth Proportional to 4,990.28, 7,481.27 and 2,768.99

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Solution

The fourth proportional to 4,990.28, 7,481.27 and 2,768.99 is: 4,151.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.28 : 7,481.27 = 2,768.99 : x
  2. Step 2: Convert to fraction form
    4,990.28/7,481.27 = 2,768.99/x
  3. Step 3: Cross multiply
    4,990.28x = 7,481.27 × 2,768.99
  4. Step 4: Simplify right side
    4,990.28x = 20,715,587.44
  5. Step 5: Solve for x
    x = 20,715,587.44/4,990.28
  6. Step 6: Final answer
    x = 4,151.19

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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.