Home / 5,268.66-7,896.84-2,928.12

Finding the Fourth Proportional to 5,268.66, 7,896.84 and 2,928.12

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Solution

The fourth proportional to 5,268.66, 7,896.84 and 2,928.12 is: 4,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.66 : 7,896.84 = 2,928.12 : x
  2. Step 2: Convert to fraction form
    5,268.66/7,896.84 = 2,928.12/x
  3. Step 3: Cross multiply
    5,268.66x = 7,896.84 × 2,928.12
  4. Step 4: Simplify right side
    5,268.66x = 23,122,895.14
  5. Step 5: Solve for x
    x = 23,122,895.14/5,268.66
  6. Step 6: Final answer
    x = 4,388.76

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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.