Home / 2,568.11-3,544-1,389.19

Finding the Fourth Proportional to 2,568.11, 3,544 and 1,389.19

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Solution

The fourth proportional to 2,568.11, 3,544 and 1,389.19 is: 1,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568.11 : 3,544 = 1,389.19 : x
  2. Step 2: Convert to fraction form
    2,568.11/3,544 = 1,389.19/x
  3. Step 3: Cross multiply
    2,568.11x = 3,544 × 1,389.19
  4. Step 4: Simplify right side
    2,568.11x = 4,923,289.36
  5. Step 5: Solve for x
    x = 4,923,289.36/2,568.11
  6. Step 6: Final answer
    x = 1,917.09

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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.