Home / 3,161.22-4,742.52-1,081.14

Finding the Fourth Proportional to 3,161.22, 4,742.52 and 1,081.14

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Solution

The fourth proportional to 3,161.22, 4,742.52 and 1,081.14 is: 1,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.22 : 4,742.52 = 1,081.14 : x
  2. Step 2: Convert to fraction form
    3,161.22/4,742.52 = 1,081.14/x
  3. Step 3: Cross multiply
    3,161.22x = 4,742.52 × 1,081.14
  4. Step 4: Simplify right side
    3,161.22x = 5,127,328.07
  5. Step 5: Solve for x
    x = 5,127,328.07/3,161.22
  6. Step 6: Final answer
    x = 1,621.95

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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.