Home / 3,895.49-5,375.76-2,127.11

Finding the Fourth Proportional to 3,895.49, 5,375.76 and 2,127.11

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Solution

The fourth proportional to 3,895.49, 5,375.76 and 2,127.11 is: 2,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.49 : 5,375.76 = 2,127.11 : x
  2. Step 2: Convert to fraction form
    3,895.49/5,375.76 = 2,127.11/x
  3. Step 3: Cross multiply
    3,895.49x = 5,375.76 × 2,127.11
  4. Step 4: Simplify right side
    3,895.49x = 11,434,805.97
  5. Step 5: Solve for x
    x = 11,434,805.97/3,895.49
  6. Step 6: Final answer
    x = 2,935.40

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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.