Home / 3,895.45-5,375.83-2,127.17

Finding the Fourth Proportional to 3,895.45, 5,375.83 and 2,127.17

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Solution

The fourth proportional to 3,895.45, 5,375.83 and 2,127.17 is: 2,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.45 : 5,375.83 = 2,127.17 : x
  2. Step 2: Convert to fraction form
    3,895.45/5,375.83 = 2,127.17/x
  3. Step 3: Cross multiply
    3,895.45x = 5,375.83 × 2,127.17
  4. Step 4: Simplify right side
    3,895.45x = 11,435,304.30
  5. Step 5: Solve for x
    x = 11,435,304.30/3,895.45
  6. Step 6: Final answer
    x = 2,935.55

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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.