Home / 2,087.49-3,128.59-1,838.41

Finding the Fourth Proportional to 2,087.49, 3,128.59 and 1,838.41

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Solution

The fourth proportional to 2,087.49, 3,128.59 and 1,838.41 is: 2,755.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.49 : 3,128.59 = 1,838.41 : x
  2. Step 2: Convert to fraction form
    2,087.49/3,128.59 = 1,838.41/x
  3. Step 3: Cross multiply
    2,087.49x = 3,128.59 × 1,838.41
  4. Step 4: Simplify right side
    2,087.49x = 5,751,643.22
  5. Step 5: Solve for x
    x = 5,751,643.22/2,087.49
  6. Step 6: Final answer
    x = 2,755.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.