Home / 3,413.59-5,120.45-1,333.51

Finding the Fourth Proportional to 3,413.59, 5,120.45 and 1,333.51

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Solution

The fourth proportional to 3,413.59, 5,120.45 and 1,333.51 is: 2,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.59 : 5,120.45 = 1,333.51 : x
  2. Step 2: Convert to fraction form
    3,413.59/5,120.45 = 1,333.51/x
  3. Step 3: Cross multiply
    3,413.59x = 5,120.45 × 1,333.51
  4. Step 4: Simplify right side
    3,413.59x = 6,828,171.28
  5. Step 5: Solve for x
    x = 6,828,171.28/3,413.59
  6. Step 6: Final answer
    x = 2,000.29

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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.