Home / 3,901.94-5,384.48-2,133.20

Finding the Fourth Proportional to 3,901.94, 5,384.48 and 2,133.20

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Solution

The fourth proportional to 3,901.94, 5,384.48 and 2,133.20 is: 2,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.94 : 5,384.48 = 2,133.20 : x
  2. Step 2: Convert to fraction form
    3,901.94/5,384.48 = 2,133.20/x
  3. Step 3: Cross multiply
    3,901.94x = 5,384.48 × 2,133.20
  4. Step 4: Simplify right side
    3,901.94x = 11,486,175.53
  5. Step 5: Solve for x
    x = 11,486,175.53/3,901.94
  6. Step 6: Final answer
    x = 2,943.71

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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.