Home / 5,418.26-8,126.48-1,521.75

Finding the Fourth Proportional to 5,418.26, 8,126.48 and 1,521.75

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Solution

The fourth proportional to 5,418.26, 8,126.48 and 1,521.75 is: 2,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.26 : 8,126.48 = 1,521.75 : x
  2. Step 2: Convert to fraction form
    5,418.26/8,126.48 = 1,521.75/x
  3. Step 3: Cross multiply
    5,418.26x = 8,126.48 × 1,521.75
  4. Step 4: Simplify right side
    5,418.26x = 12,366,463.33
  5. Step 5: Solve for x
    x = 12,366,463.33/5,418.26
  6. Step 6: Final answer
    x = 2,282.37

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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.