Home / 3,816.75-5,724.55-1,318.33

Finding the Fourth Proportional to 3,816.75, 5,724.55 and 1,318.33

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Solution

The fourth proportional to 3,816.75, 5,724.55 and 1,318.33 is: 1,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.75 : 5,724.55 = 1,318.33 : x
  2. Step 2: Convert to fraction form
    3,816.75/5,724.55 = 1,318.33/x
  3. Step 3: Cross multiply
    3,816.75x = 5,724.55 × 1,318.33
  4. Step 4: Simplify right side
    3,816.75x = 7,546,846.00
  5. Step 5: Solve for x
    x = 7,546,846.00/3,816.75
  6. Step 6: Final answer
    x = 1,977.30

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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.