Home / 3,105.33-4,285.62-1,845.75

Finding the Fourth Proportional to 3,105.33, 4,285.62 and 1,845.75

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Solution

The fourth proportional to 3,105.33, 4,285.62 and 1,845.75 is: 2,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.33 : 4,285.62 = 1,845.75 : x
  2. Step 2: Convert to fraction form
    3,105.33/4,285.62 = 1,845.75/x
  3. Step 3: Cross multiply
    3,105.33x = 4,285.62 × 1,845.75
  4. Step 4: Simplify right side
    3,105.33x = 7,910,183.12
  5. Step 5: Solve for x
    x = 7,910,183.12/3,105.33
  6. Step 6: Final answer
    x = 2,547.29

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1.5x scale

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.