Home / 3,931.28-5,425.00-2,512.97

Finding the Fourth Proportional to 3,931.28, 5,425.00 and 2,512.97

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Solution

The fourth proportional to 3,931.28, 5,425.00 and 2,512.97 is: 3,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.28 : 5,425.00 = 2,512.97 : x
  2. Step 2: Convert to fraction form
    3,931.28/5,425.00 = 2,512.97/x
  3. Step 3: Cross multiply
    3,931.28x = 5,425.00 × 2,512.97
  4. Step 4: Simplify right side
    3,931.28x = 13,632,828.84
  5. Step 5: Solve for x
    x = 13,632,828.84/3,931.28
  6. Step 6: Final answer
    x = 3,467.79

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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.