Home / 7,422.68-11,135.51-2,425.39

Finding the Fourth Proportional to 7,422.68, 11,135.51 and 2,425.39

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Solution

The fourth proportional to 7,422.68, 11,135.51 and 2,425.39 is: 3,638.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.68 : 11,135.51 = 2,425.39 : x
  2. Step 2: Convert to fraction form
    7,422.68/11,135.51 = 2,425.39/x
  3. Step 3: Cross multiply
    7,422.68x = 11,135.51 × 2,425.39
  4. Step 4: Simplify right side
    7,422.68x = 27,007,954.60
  5. Step 5: Solve for x
    x = 27,007,954.60/7,422.68
  6. Step 6: Final answer
    x = 3,638.57

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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.