Home / 3,418.76-5,136.34-2,188.58

Finding the Fourth Proportional to 3,418.76, 5,136.34 and 2,188.58

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Solution

The fourth proportional to 3,418.76, 5,136.34 and 2,188.58 is: 3,288.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.76 : 5,136.34 = 2,188.58 : x
  2. Step 2: Convert to fraction form
    3,418.76/5,136.34 = 2,188.58/x
  3. Step 3: Cross multiply
    3,418.76x = 5,136.34 × 2,188.58
  4. Step 4: Simplify right side
    3,418.76x = 11,241,291.00
  5. Step 5: Solve for x
    x = 11,241,291.00/3,418.76
  6. Step 6: Final answer
    x = 3,288.12

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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.