Home / 2,212.26-3,317.23-1,432.64

Finding the Fourth Proportional to 2,212.26, 3,317.23 and 1,432.64

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Solution

The fourth proportional to 2,212.26, 3,317.23 and 1,432.64 is: 2,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.26 : 3,317.23 = 1,432.64 : x
  2. Step 2: Convert to fraction form
    2,212.26/3,317.23 = 1,432.64/x
  3. Step 3: Cross multiply
    2,212.26x = 3,317.23 × 1,432.64
  4. Step 4: Simplify right side
    2,212.26x = 4,752,383.78
  5. Step 5: Solve for x
    x = 4,752,383.78/2,212.26
  6. Step 6: Final answer
    x = 2,148.20

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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.