Home / 3,858.30-5,324.45-2,179.58

Finding the Fourth Proportional to 3,858.30, 5,324.45 and 2,179.58

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Solution

The fourth proportional to 3,858.30, 5,324.45 and 2,179.58 is: 3,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.30 : 5,324.45 = 2,179.58 : x
  2. Step 2: Convert to fraction form
    3,858.30/5,324.45 = 2,179.58/x
  3. Step 3: Cross multiply
    3,858.30x = 5,324.45 × 2,179.58
  4. Step 4: Simplify right side
    3,858.30x = 11,605,047.18
  5. Step 5: Solve for x
    x = 11,605,047.18/3,858.30
  6. Step 6: Final answer
    x = 3,007.81

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1.5x scale

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.