Home / 7,418.58-11,131.18-3,907.74

Finding the Fourth Proportional to 7,418.58, 11,131.18 and 3,907.74

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Solution

The fourth proportional to 7,418.58, 11,131.18 and 3,907.74 is: 5,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.58 : 11,131.18 = 3,907.74 : x
  2. Step 2: Convert to fraction form
    7,418.58/11,131.18 = 3,907.74/x
  3. Step 3: Cross multiply
    7,418.58x = 11,131.18 × 3,907.74
  4. Step 4: Simplify right side
    7,418.58x = 43,497,757.33
  5. Step 5: Solve for x
    x = 43,497,757.33/7,418.58
  6. Step 6: Final answer
    x = 5,863.35

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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.