Home / 3,109.54-4,664.52-1,161.70

Finding the Fourth Proportional to 3,109.54, 4,664.52 and 1,161.70

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Solution

The fourth proportional to 3,109.54, 4,664.52 and 1,161.70 is: 1,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.54 : 4,664.52 = 1,161.70 : x
  2. Step 2: Convert to fraction form
    3,109.54/4,664.52 = 1,161.70/x
  3. Step 3: Cross multiply
    3,109.54x = 4,664.52 × 1,161.70
  4. Step 4: Simplify right side
    3,109.54x = 5,418,743.75
  5. Step 5: Solve for x
    x = 5,418,743.75/3,109.54
  6. Step 6: Final answer
    x = 1,742.62

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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.