Home / 3,109.22-4,665.05-1,161.58

Finding the Fourth Proportional to 3,109.22, 4,665.05 and 1,161.58

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Solution

The fourth proportional to 3,109.22, 4,665.05 and 1,161.58 is: 1,742.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.22 : 4,665.05 = 1,161.58 : x
  2. Step 2: Convert to fraction form
    3,109.22/4,665.05 = 1,161.58/x
  3. Step 3: Cross multiply
    3,109.22x = 4,665.05 × 1,161.58
  4. Step 4: Simplify right side
    3,109.22x = 5,418,828.78
  5. Step 5: Solve for x
    x = 5,418,828.78/3,109.22
  6. Step 6: Final answer
    x = 1,742.83

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1.5x scale

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.