Home / 3,609.45-5,413.56-1,143.71

Finding the Fourth Proportional to 3,609.45, 5,413.56 and 1,143.71

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Solution

The fourth proportional to 3,609.45, 5,413.56 and 1,143.71 is: 1,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.45 : 5,413.56 = 1,143.71 : x
  2. Step 2: Convert to fraction form
    3,609.45/5,413.56 = 1,143.71/x
  3. Step 3: Cross multiply
    3,609.45x = 5,413.56 × 1,143.71
  4. Step 4: Simplify right side
    3,609.45x = 6,191,515.64
  5. Step 5: Solve for x
    x = 6,191,515.64/3,609.45
  6. Step 6: Final answer
    x = 1,715.36

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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.