Home / 2,019.28-2,787.66-1,359.61

Finding the Fourth Proportional to 2,019.28, 2,787.66 and 1,359.61

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Solution

The fourth proportional to 2,019.28, 2,787.66 and 1,359.61 is: 1,876.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.28 : 2,787.66 = 1,359.61 : x
  2. Step 2: Convert to fraction form
    2,019.28/2,787.66 = 1,359.61/x
  3. Step 3: Cross multiply
    2,019.28x = 2,787.66 × 1,359.61
  4. Step 4: Simplify right side
    2,019.28x = 3,790,130.41
  5. Step 5: Solve for x
    x = 3,790,130.41/2,019.28
  6. Step 6: Final answer
    x = 1,876.97

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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.