Home / 3,923.52-5,414.41-2,130.96

Finding the Fourth Proportional to 3,923.52, 5,414.41 and 2,130.96

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Solution

The fourth proportional to 3,923.52, 5,414.41 and 2,130.96 is: 2,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.52 : 5,414.41 = 2,130.96 : x
  2. Step 2: Convert to fraction form
    3,923.52/5,414.41 = 2,130.96/x
  3. Step 3: Cross multiply
    3,923.52x = 5,414.41 × 2,130.96
  4. Step 4: Simplify right side
    3,923.52x = 11,537,891.13
  5. Step 5: Solve for x
    x = 11,537,891.13/3,923.52
  6. Step 6: Final answer
    x = 2,940.70

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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.