Home / 2,608.36-3,911.58-1,069.48

Finding the Fourth Proportional to 2,608.36, 3,911.58 and 1,069.48

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Solution

The fourth proportional to 2,608.36, 3,911.58 and 1,069.48 is: 1,603.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608.36 : 3,911.58 = 1,069.48 : x
  2. Step 2: Convert to fraction form
    2,608.36/3,911.58 = 1,069.48/x
  3. Step 3: Cross multiply
    2,608.36x = 3,911.58 × 1,069.48
  4. Step 4: Simplify right side
    2,608.36x = 4,183,356.58
  5. Step 5: Solve for x
    x = 4,183,356.58/2,608.36
  6. Step 6: Final answer
    x = 1,603.83

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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.