Home / 2,019.79-2,787.26-1,180.61

Finding the Fourth Proportional to 2,019.79, 2,787.26 and 1,180.61

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Solution

The fourth proportional to 2,019.79, 2,787.26 and 1,180.61 is: 1,629.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.79 : 2,787.26 = 1,180.61 : x
  2. Step 2: Convert to fraction form
    2,019.79/2,787.26 = 1,180.61/x
  3. Step 3: Cross multiply
    2,019.79x = 2,787.26 × 1,180.61
  4. Step 4: Simplify right side
    2,019.79x = 3,290,664.28
  5. Step 5: Solve for x
    x = 3,290,664.28/2,019.79
  6. Step 6: Final answer
    x = 1,629.21

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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.