Home / 3,161.18-4,742.44-1,213.94

Finding the Fourth Proportional to 3,161.18, 4,742.44 and 1,213.94

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Solution

The fourth proportional to 3,161.18, 4,742.44 and 1,213.94 is: 1,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.18 : 4,742.44 = 1,213.94 : x
  2. Step 2: Convert to fraction form
    3,161.18/4,742.44 = 1,213.94/x
  3. Step 3: Cross multiply
    3,161.18x = 4,742.44 × 1,213.94
  4. Step 4: Simplify right side
    3,161.18x = 5,757,037.61
  5. Step 5: Solve for x
    x = 5,757,037.61/3,161.18
  6. Step 6: Final answer
    x = 1,821.17

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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.