Home / 4,120.92-5,687.82-2,631.03

Finding the Fourth Proportional to 4,120.92, 5,687.82 and 2,631.03

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Solution

The fourth proportional to 4,120.92, 5,687.82 and 2,631.03 is: 3,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.92 : 5,687.82 = 2,631.03 : x
  2. Step 2: Convert to fraction form
    4,120.92/5,687.82 = 2,631.03/x
  3. Step 3: Cross multiply
    4,120.92x = 5,687.82 × 2,631.03
  4. Step 4: Simplify right side
    4,120.92x = 14,964,825.05
  5. Step 5: Solve for x
    x = 14,964,825.05/4,120.92
  6. Step 6: Final answer
    x = 3,631.43

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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.