Home / 3,413.69-5,120.64-1,333.61

Finding the Fourth Proportional to 3,413.69, 5,120.64 and 1,333.61

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Solution

The fourth proportional to 3,413.69, 5,120.64 and 1,333.61 is: 2,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.69 : 5,120.64 = 1,333.61 : x
  2. Step 2: Convert to fraction form
    3,413.69/5,120.64 = 1,333.61/x
  3. Step 3: Cross multiply
    3,413.69x = 5,120.64 × 1,333.61
  4. Step 4: Simplify right side
    3,413.69x = 6,828,949.51
  5. Step 5: Solve for x
    x = 6,828,949.51/3,413.69
  6. Step 6: Final answer
    x = 2,000.46

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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.