Home / 3,512.80-4,850.04-3,138.58

Finding the Fourth Proportional to 3,512.80, 4,850.04 and 3,138.58

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Solution

The fourth proportional to 3,512.80, 4,850.04 and 3,138.58 is: 4,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.80 : 4,850.04 = 3,138.58 : x
  2. Step 2: Convert to fraction form
    3,512.80/4,850.04 = 3,138.58/x
  3. Step 3: Cross multiply
    3,512.80x = 4,850.04 × 3,138.58
  4. Step 4: Simplify right side
    3,512.80x = 15,222,238.54
  5. Step 5: Solve for x
    x = 15,222,238.54/3,512.80
  6. Step 6: Final answer
    x = 4,333.36

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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.