Home / 3,901.94-5,384.78-2,133.51

Finding the Fourth Proportional to 3,901.94, 5,384.78 and 2,133.51

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Solution

The fourth proportional to 3,901.94, 5,384.78 and 2,133.51 is: 2,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.94 : 5,384.78 = 2,133.51 : x
  2. Step 2: Convert to fraction form
    3,901.94/5,384.78 = 2,133.51/x
  3. Step 3: Cross multiply
    3,901.94x = 5,384.78 × 2,133.51
  4. Step 4: Simplify right side
    3,901.94x = 11,488,471.31
  5. Step 5: Solve for x
    x = 11,488,471.31/3,901.94
  6. Step 6: Final answer
    x = 2,944.30

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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.