Home / 3,623.58-4,998.78-2,131.41

Finding the Fourth Proportional to 3,623.58, 4,998.78 and 2,131.41

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Solution

The fourth proportional to 3,623.58, 4,998.78 and 2,131.41 is: 2,940.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.58 : 4,998.78 = 2,131.41 : x
  2. Step 2: Convert to fraction form
    3,623.58/4,998.78 = 2,131.41/x
  3. Step 3: Cross multiply
    3,623.58x = 4,998.78 × 2,131.41
  4. Step 4: Simplify right side
    3,623.58x = 10,654,449.68
  5. Step 5: Solve for x
    x = 10,654,449.68/3,623.58
  6. Step 6: Final answer
    x = 2,940.31

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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.