Home / 3,161.85-4,741.62-1,081.29

Finding the Fourth Proportional to 3,161.85, 4,741.62 and 1,081.29

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Solution

The fourth proportional to 3,161.85, 4,741.62 and 1,081.29 is: 1,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.85 : 4,741.62 = 1,081.29 : x
  2. Step 2: Convert to fraction form
    3,161.85/4,741.62 = 1,081.29/x
  3. Step 3: Cross multiply
    3,161.85x = 4,741.62 × 1,081.29
  4. Step 4: Simplify right side
    3,161.85x = 5,127,066.29
  5. Step 5: Solve for x
    x = 5,127,066.29/3,161.85
  6. Step 6: Final answer
    x = 1,621.54

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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.