Home / 2,183.13-3,012.66-1,188.39

Finding the Fourth Proportional to 2,183.13, 3,012.66 and 1,188.39

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Solution

The fourth proportional to 2,183.13, 3,012.66 and 1,188.39 is: 1,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.13 : 3,012.66 = 1,188.39 : x
  2. Step 2: Convert to fraction form
    2,183.13/3,012.66 = 1,188.39/x
  3. Step 3: Cross multiply
    2,183.13x = 3,012.66 × 1,188.39
  4. Step 4: Simplify right side
    2,183.13x = 3,580,215.02
  5. Step 5: Solve for x
    x = 3,580,215.02/2,183.13
  6. Step 6: Final answer
    x = 1,639.95

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1.5x scale

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.