Home / 3,939.81-5,909.58-1,166.37

Finding the Fourth Proportional to 3,939.81, 5,909.58 and 1,166.37

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Solution

The fourth proportional to 3,939.81, 5,909.58 and 1,166.37 is: 1,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.81 : 5,909.58 = 1,166.37 : x
  2. Step 2: Convert to fraction form
    3,939.81/5,909.58 = 1,166.37/x
  3. Step 3: Cross multiply
    3,939.81x = 5,909.58 × 1,166.37
  4. Step 4: Simplify right side
    3,939.81x = 6,892,756.82
  5. Step 5: Solve for x
    x = 6,892,756.82/3,939.81
  6. Step 6: Final answer
    x = 1,749.52

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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.