Home / 1,943.75-2,912.37-1,393.16

Finding the Fourth Proportional to 1,943.75, 2,912.37 and 1,393.16

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Solution

The fourth proportional to 1,943.75, 2,912.37 and 1,393.16 is: 2,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.75 : 2,912.37 = 1,393.16 : x
  2. Step 2: Convert to fraction form
    1,943.75/2,912.37 = 1,393.16/x
  3. Step 3: Cross multiply
    1,943.75x = 2,912.37 × 1,393.16
  4. Step 4: Simplify right side
    1,943.75x = 4,057,382.83
  5. Step 5: Solve for x
    x = 4,057,382.83/1,943.75
  6. Step 6: Final answer
    x = 2,087.40

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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.