Home / 3,418.80-5,128.24-2,110.92

Finding the Fourth Proportional to 3,418.80, 5,128.24 and 2,110.92

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Solution

The fourth proportional to 3,418.80, 5,128.24 and 2,110.92 is: 3,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.80 : 5,128.24 = 2,110.92 : x
  2. Step 2: Convert to fraction form
    3,418.80/5,128.24 = 2,110.92/x
  3. Step 3: Cross multiply
    3,418.80x = 5,128.24 × 2,110.92
  4. Step 4: Simplify right side
    3,418.80x = 10,825,304.38
  5. Step 5: Solve for x
    x = 10,825,304.38/3,418.80
  6. Step 6: Final answer
    x = 3,166.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.