Home / 3,161.39-4,742.45-1,518.44

Finding the Fourth Proportional to 3,161.39, 4,742.45 and 1,518.44

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Solution

The fourth proportional to 3,161.39, 4,742.45 and 1,518.44 is: 2,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.39 : 4,742.45 = 1,518.44 : x
  2. Step 2: Convert to fraction form
    3,161.39/4,742.45 = 1,518.44/x
  3. Step 3: Cross multiply
    3,161.39x = 4,742.45 × 1,518.44
  4. Step 4: Simplify right side
    3,161.39x = 7,201,094.47
  5. Step 5: Solve for x
    x = 7,201,094.47/3,161.39
  6. Step 6: Final answer
    x = 2,277.83

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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.