Home / 5,388.78-8,079.43-2,098.02

Finding the Fourth Proportional to 5,388.78, 8,079.43 and 2,098.02

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Solution

The fourth proportional to 5,388.78, 8,079.43 and 2,098.02 is: 3,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.78 : 8,079.43 = 2,098.02 : x
  2. Step 2: Convert to fraction form
    5,388.78/8,079.43 = 2,098.02/x
  3. Step 3: Cross multiply
    5,388.78x = 8,079.43 × 2,098.02
  4. Step 4: Simplify right side
    5,388.78x = 16,950,805.73
  5. Step 5: Solve for x
    x = 16,950,805.73/5,388.78
  6. Step 6: Final answer
    x = 3,145.57

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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.