Home / 3,895.49-5,375.79-2,127.13

Finding the Fourth Proportional to 3,895.49, 5,375.79 and 2,127.13

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Solution

The fourth proportional to 3,895.49, 5,375.79 and 2,127.13 is: 2,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.49 : 5,375.79 = 2,127.13 : x
  2. Step 2: Convert to fraction form
    3,895.49/5,375.79 = 2,127.13/x
  3. Step 3: Cross multiply
    3,895.49x = 5,375.79 × 2,127.13
  4. Step 4: Simplify right side
    3,895.49x = 11,434,990.74
  5. Step 5: Solve for x
    x = 11,434,990.74/3,895.49
  6. Step 6: Final answer
    x = 2,935.44

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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.