Home / 3,721.25-5,134.97-2,127.57

Finding the Fourth Proportional to 3,721.25, 5,134.97 and 2,127.57

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Solution

The fourth proportional to 3,721.25, 5,134.97 and 2,127.57 is: 2,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.25 : 5,134.97 = 2,127.57 : x
  2. Step 2: Convert to fraction form
    3,721.25/5,134.97 = 2,127.57/x
  3. Step 3: Cross multiply
    3,721.25x = 5,134.97 × 2,127.57
  4. Step 4: Simplify right side
    3,721.25x = 10,925,008.12
  5. Step 5: Solve for x
    x = 10,925,008.12/3,721.25
  6. Step 6: Final answer
    x = 2,935.85

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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.