Home / 3,856.82-5,322.44-2,178.29

Finding the Fourth Proportional to 3,856.82, 5,322.44 and 2,178.29

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Solution

The fourth proportional to 3,856.82, 5,322.44 and 2,178.29 is: 3,006.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.82 : 5,322.44 = 2,178.29 : x
  2. Step 2: Convert to fraction form
    3,856.82/5,322.44 = 2,178.29/x
  3. Step 3: Cross multiply
    3,856.82x = 5,322.44 × 2,178.29
  4. Step 4: Simplify right side
    3,856.82x = 11,593,836.58
  5. Step 5: Solve for x
    x = 11,593,836.58/3,856.82
  6. Step 6: Final answer
    x = 3,006.06

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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.