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Finding the Fourth Proportional to 7,028.68, 9,699.56 and 3,884.88

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Solution

The fourth proportional to 7,028.68, 9,699.56 and 3,884.88 is: 5,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.68 : 9,699.56 = 3,884.88 : x
  2. Step 2: Convert to fraction form
    7,028.68/9,699.56 = 3,884.88/x
  3. Step 3: Cross multiply
    7,028.68x = 9,699.56 × 3,884.88
  4. Step 4: Simplify right side
    7,028.68x = 37,681,626.65
  5. Step 5: Solve for x
    x = 37,681,626.65/7,028.68
  6. Step 6: Final answer
    x = 5,361.12

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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.