Home / 3,188.12-4,780.44-1,107.96

Finding the Fourth Proportional to 3,188.12, 4,780.44 and 1,107.96

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Solution

The fourth proportional to 3,188.12, 4,780.44 and 1,107.96 is: 1,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.12 : 4,780.44 = 1,107.96 : x
  2. Step 2: Convert to fraction form
    3,188.12/4,780.44 = 1,107.96/x
  3. Step 3: Cross multiply
    3,188.12x = 4,780.44 × 1,107.96
  4. Step 4: Simplify right side
    3,188.12x = 5,296,536.30
  5. Step 5: Solve for x
    x = 5,296,536.30/3,188.12
  6. Step 6: Final answer
    x = 1,661.34

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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.