Home / 3,186.21-4,396.91-1,788.96

Finding the Fourth Proportional to 3,186.21, 4,396.91 and 1,788.96

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Solution

The fourth proportional to 3,186.21, 4,396.91 and 1,788.96 is: 2,468.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.21 : 4,396.91 = 1,788.96 : x
  2. Step 2: Convert to fraction form
    3,186.21/4,396.91 = 1,788.96/x
  3. Step 3: Cross multiply
    3,186.21x = 4,396.91 × 1,788.96
  4. Step 4: Simplify right side
    3,186.21x = 7,865,887.17
  5. Step 5: Solve for x
    x = 7,865,887.17/3,186.21
  6. Step 6: Final answer
    x = 2,468.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.