Home / 7,990.68-11,028.42-5,759.94

Finding the Fourth Proportional to 7,990.68, 11,028.42 and 5,759.94

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Solution

The fourth proportional to 7,990.68, 11,028.42 and 5,759.94 is: 7,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.68 : 11,028.42 = 5,759.94 : x
  2. Step 2: Convert to fraction form
    7,990.68/11,028.42 = 5,759.94/x
  3. Step 3: Cross multiply
    7,990.68x = 11,028.42 × 5,759.94
  4. Step 4: Simplify right side
    7,990.68x = 63,523,037.49
  5. Step 5: Solve for x
    x = 63,523,037.49/7,990.68
  6. Step 6: Final answer
    x = 7,949.64

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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.