Home / 3,761.36-5,639.73-1,787.59

Finding the Fourth Proportional to 3,761.36, 5,639.73 and 1,787.59

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Solution

The fourth proportional to 3,761.36, 5,639.73 and 1,787.59 is: 2,680.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.36 : 5,639.73 = 1,787.59 : x
  2. Step 2: Convert to fraction form
    3,761.36/5,639.73 = 1,787.59/x
  3. Step 3: Cross multiply
    3,761.36x = 5,639.73 × 1,787.59
  4. Step 4: Simplify right side
    3,761.36x = 10,081,505.47
  5. Step 5: Solve for x
    x = 10,081,505.47/3,761.36
  6. Step 6: Final answer
    x = 2,680.29

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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.