Home / 3,939.15-5,908.71-1,165.84

Finding the Fourth Proportional to 3,939.15, 5,908.71 and 1,165.84

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Solution

The fourth proportional to 3,939.15, 5,908.71 and 1,165.84 is: 1,748.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.15 : 5,908.71 = 1,165.84 : x
  2. Step 2: Convert to fraction form
    3,939.15/5,908.71 = 1,165.84/x
  3. Step 3: Cross multiply
    3,939.15x = 5,908.71 × 1,165.84
  4. Step 4: Simplify right side
    3,939.15x = 6,888,633.30
  5. Step 5: Solve for x
    x = 6,888,633.30/3,939.15
  6. Step 6: Final answer
    x = 1,748.76

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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.