Home / 3,932.12-5,901.83-1,985.69

Finding the Fourth Proportional to 3,932.12, 5,901.83 and 1,985.69

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Solution

The fourth proportional to 3,932.12, 5,901.83 and 1,985.69 is: 2,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.12 : 5,901.83 = 1,985.69 : x
  2. Step 2: Convert to fraction form
    3,932.12/5,901.83 = 1,985.69/x
  3. Step 3: Cross multiply
    3,932.12x = 5,901.83 × 1,985.69
  4. Step 4: Simplify right side
    3,932.12x = 11,719,217.09
  5. Step 5: Solve for x
    x = 11,719,217.09/3,932.12
  6. Step 6: Final answer
    x = 2,980.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.