Home / 5,049.87-6,968.12-2,811.45

Finding the Fourth Proportional to 5,049.87, 6,968.12 and 2,811.45

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Solution

The fourth proportional to 5,049.87, 6,968.12 and 2,811.45 is: 3,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.87 : 6,968.12 = 2,811.45 : x
  2. Step 2: Convert to fraction form
    5,049.87/6,968.12 = 2,811.45/x
  3. Step 3: Cross multiply
    5,049.87x = 6,968.12 × 2,811.45
  4. Step 4: Simplify right side
    5,049.87x = 19,590,520.97
  5. Step 5: Solve for x
    x = 19,590,520.97/5,049.87
  6. Step 6: Final answer
    x = 3,879.41

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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.