Home / 2,682.11-3,989.91-2,611.04

Finding the Fourth Proportional to 2,682.11, 3,989.91 and 2,611.04

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Solution

The fourth proportional to 2,682.11, 3,989.91 and 2,611.04 is: 3,884.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.11 : 3,989.91 = 2,611.04 : x
  2. Step 2: Convert to fraction form
    2,682.11/3,989.91 = 2,611.04/x
  3. Step 3: Cross multiply
    2,682.11x = 3,989.91 × 2,611.04
  4. Step 4: Simplify right side
    2,682.11x = 10,417,789.76
  5. Step 5: Solve for x
    x = 10,417,789.76/2,682.11
  6. Step 6: Final answer
    x = 3,884.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.