Home / 5,388.26-8,085.42-2,101.58

Finding the Fourth Proportional to 5,388.26, 8,085.42 and 2,101.58

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Solution

The fourth proportional to 5,388.26, 8,085.42 and 2,101.58 is: 3,153.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.26 : 8,085.42 = 2,101.58 : x
  2. Step 2: Convert to fraction form
    5,388.26/8,085.42 = 2,101.58/x
  3. Step 3: Cross multiply
    5,388.26x = 8,085.42 × 2,101.58
  4. Step 4: Simplify right side
    5,388.26x = 16,992,156.96
  5. Step 5: Solve for x
    x = 16,992,156.96/5,388.26
  6. Step 6: Final answer
    x = 3,153.55

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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.