Home / 3,901.87-5,384.67-2,133.48

Finding the Fourth Proportional to 3,901.87, 5,384.67 and 2,133.48

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Solution

The fourth proportional to 3,901.87, 5,384.67 and 2,133.48 is: 2,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.87 : 5,384.67 = 2,133.48 : x
  2. Step 2: Convert to fraction form
    3,901.87/5,384.67 = 2,133.48/x
  3. Step 3: Cross multiply
    3,901.87x = 5,384.67 × 2,133.48
  4. Step 4: Simplify right side
    3,901.87x = 11,488,085.75
  5. Step 5: Solve for x
    x = 11,488,085.75/3,901.87
  6. Step 6: Final answer
    x = 2,944.25

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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.