Home / 3,895.92-5,376.42-2,127.54

Finding the Fourth Proportional to 3,895.92, 5,376.42 and 2,127.54

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Solution

The fourth proportional to 3,895.92, 5,376.42 and 2,127.54 is: 2,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.92 : 5,376.42 = 2,127.54 : x
  2. Step 2: Convert to fraction form
    3,895.92/5,376.42 = 2,127.54/x
  3. Step 3: Cross multiply
    3,895.92x = 5,376.42 × 2,127.54
  4. Step 4: Simplify right side
    3,895.92x = 11,438,548.61
  5. Step 5: Solve for x
    x = 11,438,548.61/3,895.92
  6. Step 6: Final answer
    x = 2,936.03

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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.