Home / 3,143.62-4,340.82-2,622.39

Finding the Fourth Proportional to 3,143.62, 4,340.82 and 2,622.39

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Solution

The fourth proportional to 3,143.62, 4,340.82 and 2,622.39 is: 3,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.62 : 4,340.82 = 2,622.39 : x
  2. Step 2: Convert to fraction form
    3,143.62/4,340.82 = 2,622.39/x
  3. Step 3: Cross multiply
    3,143.62x = 4,340.82 × 2,622.39
  4. Step 4: Simplify right side
    3,143.62x = 11,383,322.96
  5. Step 5: Solve for x
    x = 11,383,322.96/3,143.62
  6. Step 6: Final answer
    x = 3,621.09

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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.