Home / 2,183.18-3,012.63-1,188.44

Finding the Fourth Proportional to 2,183.18, 3,012.63 and 1,188.44

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Solution

The fourth proportional to 2,183.18, 3,012.63 and 1,188.44 is: 1,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.18 : 3,012.63 = 1,188.44 : x
  2. Step 2: Convert to fraction form
    2,183.18/3,012.63 = 1,188.44/x
  3. Step 3: Cross multiply
    2,183.18x = 3,012.63 × 1,188.44
  4. Step 4: Simplify right side
    2,183.18x = 3,580,314.93
  5. Step 5: Solve for x
    x = 3,580,314.93/2,183.18
  6. Step 6: Final answer
    x = 1,639.96

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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.