Home / 7,418.34-11,127.72-2,738.58

Finding the Fourth Proportional to 7,418.34, 11,127.72 and 2,738.58

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Solution

The fourth proportional to 7,418.34, 11,127.72 and 2,738.58 is: 4,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.34 : 11,127.72 = 2,738.58 : x
  2. Step 2: Convert to fraction form
    7,418.34/11,127.72 = 2,738.58/x
  3. Step 3: Cross multiply
    7,418.34x = 11,127.72 × 2,738.58
  4. Step 4: Simplify right side
    7,418.34x = 30,474,151.44
  5. Step 5: Solve for x
    x = 30,474,151.44/7,418.34
  6. Step 6: Final answer
    x = 4,107.95

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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.