Home / 3,725.66-5,141.09-2,131.99

Finding the Fourth Proportional to 3,725.66, 5,141.09 and 2,131.99

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Solution

The fourth proportional to 3,725.66, 5,141.09 and 2,131.99 is: 2,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.66 : 5,141.09 = 2,131.99 : x
  2. Step 2: Convert to fraction form
    3,725.66/5,141.09 = 2,131.99/x
  3. Step 3: Cross multiply
    3,725.66x = 5,141.09 × 2,131.99
  4. Step 4: Simplify right side
    3,725.66x = 10,960,744.95
  5. Step 5: Solve for x
    x = 10,960,744.95/3,725.66
  6. Step 6: Final answer
    x = 2,941.96

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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.