Home / 5,422.79-8,137.67-2,136.03

Finding the Fourth Proportional to 5,422.79, 8,137.67 and 2,136.03

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Solution

The fourth proportional to 5,422.79, 8,137.67 and 2,136.03 is: 3,205.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.79 : 8,137.67 = 2,136.03 : x
  2. Step 2: Convert to fraction form
    5,422.79/8,137.67 = 2,136.03/x
  3. Step 3: Cross multiply
    5,422.79x = 8,137.67 × 2,136.03
  4. Step 4: Simplify right side
    5,422.79x = 17,382,296.57
  5. Step 5: Solve for x
    x = 17,382,296.57/5,422.79
  6. Step 6: Final answer
    x = 3,205.42

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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.