Home / 5,418.21-8,127.84-1,522.65

Finding the Fourth Proportional to 5,418.21, 8,127.84 and 1,522.65

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Solution

The fourth proportional to 5,418.21, 8,127.84 and 1,522.65 is: 2,284.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.21 : 8,127.84 = 1,522.65 : x
  2. Step 2: Convert to fraction form
    5,418.21/8,127.84 = 1,522.65/x
  3. Step 3: Cross multiply
    5,418.21x = 8,127.84 × 1,522.65
  4. Step 4: Simplify right side
    5,418.21x = 12,375,855.58
  5. Step 5: Solve for x
    x = 12,375,855.58/5,418.21
  6. Step 6: Final answer
    x = 2,284.12

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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.