Home / 3,006.06-4,143.51-2,120.46

Finding the Fourth Proportional to 3,006.06, 4,143.51 and 2,120.46

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Solution

The fourth proportional to 3,006.06, 4,143.51 and 2,120.46 is: 2,922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.06 : 4,143.51 = 2,120.46 : x
  2. Step 2: Convert to fraction form
    3,006.06/4,143.51 = 2,120.46/x
  3. Step 3: Cross multiply
    3,006.06x = 4,143.51 × 2,120.46
  4. Step 4: Simplify right side
    3,006.06x = 8,786,147.21
  5. Step 5: Solve for x
    x = 8,786,147.21/3,006.06
  6. Step 6: Final answer
    x = 2,922.81

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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.