Home / 3,609.11-5,413.62-1,143.47

Finding the Fourth Proportional to 3,609.11, 5,413.62 and 1,143.47

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Solution

The fourth proportional to 3,609.11, 5,413.62 and 1,143.47 is: 1,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.11 : 5,413.62 = 1,143.47 : x
  2. Step 2: Convert to fraction form
    3,609.11/5,413.62 = 1,143.47/x
  3. Step 3: Cross multiply
    3,609.11x = 5,413.62 × 1,143.47
  4. Step 4: Simplify right side
    3,609.11x = 6,190,284.99
  5. Step 5: Solve for x
    x = 6,190,284.99/3,609.11
  6. Step 6: Final answer
    x = 1,715.19

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1.5x scale

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.