Home / 5,122.66-7,069.94-2,884.97

Finding the Fourth Proportional to 5,122.66, 7,069.94 and 2,884.97

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Solution

The fourth proportional to 5,122.66, 7,069.94 and 2,884.97 is: 3,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.66 : 7,069.94 = 2,884.97 : x
  2. Step 2: Convert to fraction form
    5,122.66/7,069.94 = 2,884.97/x
  3. Step 3: Cross multiply
    5,122.66x = 7,069.94 × 2,884.97
  4. Step 4: Simplify right side
    5,122.66x = 20,396,564.80
  5. Step 5: Solve for x
    x = 20,396,564.80/5,122.66
  6. Step 6: Final answer
    x = 3,981.64

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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.