Home / 3,112.42-4,668.63-2,135.56

Finding the Fourth Proportional to 3,112.42, 4,668.63 and 2,135.56

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Solution

The fourth proportional to 3,112.42, 4,668.63 and 2,135.56 is: 3,203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.42 : 4,668.63 = 2,135.56 : x
  2. Step 2: Convert to fraction form
    3,112.42/4,668.63 = 2,135.56/x
  3. Step 3: Cross multiply
    3,112.42x = 4,668.63 × 2,135.56
  4. Step 4: Simplify right side
    3,112.42x = 9,970,116.14
  5. Step 5: Solve for x
    x = 9,970,116.14/3,112.42
  6. Step 6: Final answer
    x = 3,203.34

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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.