Home / 3,580.53-5,370.99-1,115.70

Finding the Fourth Proportional to 3,580.53, 5,370.99 and 1,115.70

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Solution

The fourth proportional to 3,580.53, 5,370.99 and 1,115.70 is: 1,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.53 : 5,370.99 = 1,115.70 : x
  2. Step 2: Convert to fraction form
    3,580.53/5,370.99 = 1,115.70/x
  3. Step 3: Cross multiply
    3,580.53x = 5,370.99 × 1,115.70
  4. Step 4: Simplify right side
    3,580.53x = 5,992,413.54
  5. Step 5: Solve for x
    x = 5,992,413.54/3,580.53
  6. Step 6: Final answer
    x = 1,673.61

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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.