Home / 2,183.66-3,011.83-1,386.29

Finding the Fourth Proportional to 2,183.66, 3,011.83 and 1,386.29

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Solution

The fourth proportional to 2,183.66, 3,011.83 and 1,386.29 is: 1,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.66 : 3,011.83 = 1,386.29 : x
  2. Step 2: Convert to fraction form
    2,183.66/3,011.83 = 1,386.29/x
  3. Step 3: Cross multiply
    2,183.66x = 3,011.83 × 1,386.29
  4. Step 4: Simplify right side
    2,183.66x = 4,175,273.87
  5. Step 5: Solve for x
    x = 4,175,273.87/2,183.66
  6. Step 6: Final answer
    x = 1,912.05

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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.