Home / 2,881.57-3,976.27-1,622.43

Finding the Fourth Proportional to 2,881.57, 3,976.27 and 1,622.43

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Solution

The fourth proportional to 2,881.57, 3,976.27 and 1,622.43 is: 2,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.57 : 3,976.27 = 1,622.43 : x
  2. Step 2: Convert to fraction form
    2,881.57/3,976.27 = 1,622.43/x
  3. Step 3: Cross multiply
    2,881.57x = 3,976.27 × 1,622.43
  4. Step 4: Simplify right side
    2,881.57x = 6,451,199.85
  5. Step 5: Solve for x
    x = 6,451,199.85/2,881.57
  6. Step 6: Final answer
    x = 2,238.78

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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.