Home / 3,858-5,324.36-2,202.32

Finding the Fourth Proportional to 3,858, 5,324.36 and 2,202.32

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Solution

The fourth proportional to 3,858, 5,324.36 and 2,202.32 is: 3,039.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858 : 5,324.36 = 2,202.32 : x
  2. Step 2: Convert to fraction form
    3,858/5,324.36 = 2,202.32/x
  3. Step 3: Cross multiply
    3,858x = 5,324.36 × 2,202.32
  4. Step 4: Simplify right side
    3,858x = 11,725,944.52
  5. Step 5: Solve for x
    x = 11,725,944.52/3,858
  6. Step 6: Final answer
    x = 3,039.38

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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.