Home / 3,615.11-5,413.99-1,855.48

Finding the Fourth Proportional to 3,615.11, 5,413.99 and 1,855.48

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Solution

The fourth proportional to 3,615.11, 5,413.99 and 1,855.48 is: 2,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.11 : 5,413.99 = 1,855.48 : x
  2. Step 2: Convert to fraction form
    3,615.11/5,413.99 = 1,855.48/x
  3. Step 3: Cross multiply
    3,615.11x = 5,413.99 × 1,855.48
  4. Step 4: Simplify right side
    3,615.11x = 10,045,550.17
  5. Step 5: Solve for x
    x = 10,045,550.17/3,615.11
  6. Step 6: Final answer
    x = 2,778.77

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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.