Home / 4,109.20-6,162-1,187.44

Finding the Fourth Proportional to 4,109.20, 6,162 and 1,187.44

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Solution

The fourth proportional to 4,109.20, 6,162 and 1,187.44 is: 1,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.20 : 6,162 = 1,187.44 : x
  2. Step 2: Convert to fraction form
    4,109.20/6,162 = 1,187.44/x
  3. Step 3: Cross multiply
    4,109.20x = 6,162 × 1,187.44
  4. Step 4: Simplify right side
    4,109.20x = 7,317,005.28
  5. Step 5: Solve for x
    x = 7,317,005.28/4,109.20
  6. Step 6: Final answer
    x = 1,780.64

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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.