Home / 3,901.80-5,384.69-2,133.39

Finding the Fourth Proportional to 3,901.80, 5,384.69 and 2,133.39

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Solution

The fourth proportional to 3,901.80, 5,384.69 and 2,133.39 is: 2,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.80 : 5,384.69 = 2,133.39 : x
  2. Step 2: Convert to fraction form
    3,901.80/5,384.69 = 2,133.39/x
  3. Step 3: Cross multiply
    3,901.80x = 5,384.69 × 2,133.39
  4. Step 4: Simplify right side
    3,901.80x = 11,487,633.13
  5. Step 5: Solve for x
    x = 11,487,633.13/3,901.80
  6. Step 6: Final answer
    x = 2,944.19

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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.