Home / 2,148.45-3,223.91-1,161.27

Finding the Fourth Proportional to 2,148.45, 3,223.91 and 1,161.27

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Solution

The fourth proportional to 2,148.45, 3,223.91 and 1,161.27 is: 1,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.45 : 3,223.91 = 1,161.27 : x
  2. Step 2: Convert to fraction form
    2,148.45/3,223.91 = 1,161.27/x
  3. Step 3: Cross multiply
    2,148.45x = 3,223.91 × 1,161.27
  4. Step 4: Simplify right side
    2,148.45x = 3,743,813.85
  5. Step 5: Solve for x
    x = 3,743,813.85/2,148.45
  6. Step 6: Final answer
    x = 1,742.57

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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.