Home / 3,859.12-5,324.52-2,180.56

Finding the Fourth Proportional to 3,859.12, 5,324.52 and 2,180.56

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Solution

The fourth proportional to 3,859.12, 5,324.52 and 2,180.56 is: 3,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.12 : 5,324.52 = 2,180.56 : x
  2. Step 2: Convert to fraction form
    3,859.12/5,324.52 = 2,180.56/x
  3. Step 3: Cross multiply
    3,859.12x = 5,324.52 × 2,180.56
  4. Step 4: Simplify right side
    3,859.12x = 11,610,435.33
  5. Step 5: Solve for x
    x = 11,610,435.33/3,859.12
  6. Step 6: Final answer
    x = 3,008.57

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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.