Home / 3,109.64-4,665.67-1,161.38

Finding the Fourth Proportional to 3,109.64, 4,665.67 and 1,161.38

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Solution

The fourth proportional to 3,109.64, 4,665.67 and 1,161.38 is: 1,742.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.64 : 4,665.67 = 1,161.38 : x
  2. Step 2: Convert to fraction form
    3,109.64/4,665.67 = 1,161.38/x
  3. Step 3: Cross multiply
    3,109.64x = 4,665.67 × 1,161.38
  4. Step 4: Simplify right side
    3,109.64x = 5,418,624.59
  5. Step 5: Solve for x
    x = 5,418,624.59/3,109.64
  6. Step 6: Final answer
    x = 1,742.53

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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.