Home / 3,862.46-5,329.86-2,183.78

Finding the Fourth Proportional to 3,862.46, 5,329.86 and 2,183.78

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Solution

The fourth proportional to 3,862.46, 5,329.86 and 2,183.78 is: 3,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.46 : 5,329.86 = 2,183.78 : x
  2. Step 2: Convert to fraction form
    3,862.46/5,329.86 = 2,183.78/x
  3. Step 3: Cross multiply
    3,862.46x = 5,329.86 × 2,183.78
  4. Step 4: Simplify right side
    3,862.46x = 11,639,215.02
  5. Step 5: Solve for x
    x = 11,639,215.02/3,862.46
  6. Step 6: Final answer
    x = 3,013.42

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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.