Home / 5,422.32-8,136.21-2,137.77

Finding the Fourth Proportional to 5,422.32, 8,136.21 and 2,137.77

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Solution

The fourth proportional to 5,422.32, 8,136.21 and 2,137.77 is: 3,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.32 : 8,136.21 = 2,137.77 : x
  2. Step 2: Convert to fraction form
    5,422.32/8,136.21 = 2,137.77/x
  3. Step 3: Cross multiply
    5,422.32x = 8,136.21 × 2,137.77
  4. Step 4: Simplify right side
    5,422.32x = 17,393,345.65
  5. Step 5: Solve for x
    x = 17,393,345.65/5,422.32
  6. Step 6: Final answer
    x = 3,207.73

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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.