Home / 3,901.91-5,384.75-2,133.54

Finding the Fourth Proportional to 3,901.91, 5,384.75 and 2,133.54

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Solution

The fourth proportional to 3,901.91, 5,384.75 and 2,133.54 is: 2,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.91 : 5,384.75 = 2,133.54 : x
  2. Step 2: Convert to fraction form
    3,901.91/5,384.75 = 2,133.54/x
  3. Step 3: Cross multiply
    3,901.91x = 5,384.75 × 2,133.54
  4. Step 4: Simplify right side
    3,901.91x = 11,488,568.85
  5. Step 5: Solve for x
    x = 11,488,568.85/3,901.91
  6. Step 6: Final answer
    x = 2,944.35

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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.