Home / 3,212.43-4,427.83-2,149.81

Finding the Fourth Proportional to 3,212.43, 4,427.83 and 2,149.81

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Solution

The fourth proportional to 3,212.43, 4,427.83 and 2,149.81 is: 2,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.43 : 4,427.83 = 2,149.81 : x
  2. Step 2: Convert to fraction form
    3,212.43/4,427.83 = 2,149.81/x
  3. Step 3: Cross multiply
    3,212.43x = 4,427.83 × 2,149.81
  4. Step 4: Simplify right side
    3,212.43x = 9,518,984.83
  5. Step 5: Solve for x
    x = 9,518,984.83/3,212.43
  6. Step 6: Final answer
    x = 2,963.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.