Home / 3,728.25-5,150.57-2,455.16

Finding the Fourth Proportional to 3,728.25, 5,150.57 and 2,455.16

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Solution

The fourth proportional to 3,728.25, 5,150.57 and 2,455.16 is: 3,391.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.25 : 5,150.57 = 2,455.16 : x
  2. Step 2: Convert to fraction form
    3,728.25/5,150.57 = 2,455.16/x
  3. Step 3: Cross multiply
    3,728.25x = 5,150.57 × 2,455.16
  4. Step 4: Simplify right side
    3,728.25x = 12,645,435.41
  5. Step 5: Solve for x
    x = 12,645,435.41/3,728.25
  6. Step 6: Final answer
    x = 3,391.79

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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.