Home / 3,163.45-4,742.26-1,215.26

Finding the Fourth Proportional to 3,163.45, 4,742.26 and 1,215.26

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Solution

The fourth proportional to 3,163.45, 4,742.26 and 1,215.26 is: 1,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.45 : 4,742.26 = 1,215.26 : x
  2. Step 2: Convert to fraction form
    3,163.45/4,742.26 = 1,215.26/x
  3. Step 3: Cross multiply
    3,163.45x = 4,742.26 × 1,215.26
  4. Step 4: Simplify right side
    3,163.45x = 5,763,078.89
  5. Step 5: Solve for x
    x = 5,763,078.89/3,163.45
  6. Step 6: Final answer
    x = 1,821.77

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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.