Home / 1,826.78-2,735.54-1,208.61

Finding the Fourth Proportional to 1,826.78, 2,735.54 and 1,208.61

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Solution

The fourth proportional to 1,826.78, 2,735.54 and 1,208.61 is: 1,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.78 : 2,735.54 = 1,208.61 : x
  2. Step 2: Convert to fraction form
    1,826.78/2,735.54 = 1,208.61/x
  3. Step 3: Cross multiply
    1,826.78x = 2,735.54 × 1,208.61
  4. Step 4: Simplify right side
    1,826.78x = 3,306,194.96
  5. Step 5: Solve for x
    x = 3,306,194.96/1,826.78
  6. Step 6: Final answer
    x = 1,809.85

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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.