Home / 1,944.36-2,914.11-1,388.21

Finding the Fourth Proportional to 1,944.36, 2,914.11 and 1,388.21

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Solution

The fourth proportional to 1,944.36, 2,914.11 and 1,388.21 is: 2,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.36 : 2,914.11 = 1,388.21 : x
  2. Step 2: Convert to fraction form
    1,944.36/2,914.11 = 1,388.21/x
  3. Step 3: Cross multiply
    1,944.36x = 2,914.11 × 1,388.21
  4. Step 4: Simplify right side
    1,944.36x = 4,045,382.07
  5. Step 5: Solve for x
    x = 4,045,382.07/1,944.36
  6. Step 6: Final answer
    x = 2,080.57

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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.