Home / 3,901.45-5,383.97-2,133.02

Finding the Fourth Proportional to 3,901.45, 5,383.97 and 2,133.02

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Solution

The fourth proportional to 3,901.45, 5,383.97 and 2,133.02 is: 2,943.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.45 : 5,383.97 = 2,133.02 : x
  2. Step 2: Convert to fraction form
    3,901.45/5,383.97 = 2,133.02/x
  3. Step 3: Cross multiply
    3,901.45x = 5,383.97 × 2,133.02
  4. Step 4: Simplify right side
    3,901.45x = 11,484,105.02
  5. Step 5: Solve for x
    x = 11,484,105.02/3,901.45
  6. Step 6: Final answer
    x = 2,943.55

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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.