Home / 3,867.19-5,336.66-2,098.78

Finding the Fourth Proportional to 3,867.19, 5,336.66 and 2,098.78

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Solution

The fourth proportional to 3,867.19, 5,336.66 and 2,098.78 is: 2,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.19 : 5,336.66 = 2,098.78 : x
  2. Step 2: Convert to fraction form
    3,867.19/5,336.66 = 2,098.78/x
  3. Step 3: Cross multiply
    3,867.19x = 5,336.66 × 2,098.78
  4. Step 4: Simplify right side
    3,867.19x = 11,200,438.10
  5. Step 5: Solve for x
    x = 11,200,438.10/3,867.19
  6. Step 6: Final answer
    x = 2,896.28

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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.