Home / 3,867.93-5,338.31-2,190.02

Finding the Fourth Proportional to 3,867.93, 5,338.31 and 2,190.02

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Solution

The fourth proportional to 3,867.93, 5,338.31 and 2,190.02 is: 3,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.93 : 5,338.31 = 2,190.02 : x
  2. Step 2: Convert to fraction form
    3,867.93/5,338.31 = 2,190.02/x
  3. Step 3: Cross multiply
    3,867.93x = 5,338.31 × 2,190.02
  4. Step 4: Simplify right side
    3,867.93x = 11,690,968.02
  5. Step 5: Solve for x
    x = 11,690,968.02/3,867.93
  6. Step 6: Final answer
    x = 3,022.54

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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.