Home / 3,917.33-5,405.91-2,148.94

Finding the Fourth Proportional to 3,917.33, 5,405.91 and 2,148.94

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Solution

The fourth proportional to 3,917.33, 5,405.91 and 2,148.94 is: 2,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.33 : 5,405.91 = 2,148.94 : x
  2. Step 2: Convert to fraction form
    3,917.33/5,405.91 = 2,148.94/x
  3. Step 3: Cross multiply
    3,917.33x = 5,405.91 × 2,148.94
  4. Step 4: Simplify right side
    3,917.33x = 11,616,976.24
  5. Step 5: Solve for x
    x = 11,616,976.24/3,917.33
  6. Step 6: Final answer
    x = 2,965.53

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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.