Home / 3,458.25-4,772.75-2,131.92

Finding the Fourth Proportional to 3,458.25, 4,772.75 and 2,131.92

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Solution

The fourth proportional to 3,458.25, 4,772.75 and 2,131.92 is: 2,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.25 : 4,772.75 = 2,131.92 : x
  2. Step 2: Convert to fraction form
    3,458.25/4,772.75 = 2,131.92/x
  3. Step 3: Cross multiply
    3,458.25x = 4,772.75 × 2,131.92
  4. Step 4: Simplify right side
    3,458.25x = 10,175,110.52
  5. Step 5: Solve for x
    x = 10,175,110.52/3,458.25
  6. Step 6: Final answer
    x = 2,942.27

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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.