Home / 3,413.36-5,121.65-1,769.02

Finding the Fourth Proportional to 3,413.36, 5,121.65 and 1,769.02

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Solution

The fourth proportional to 3,413.36, 5,121.65 and 1,769.02 is: 2,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.36 : 5,121.65 = 1,769.02 : x
  2. Step 2: Convert to fraction form
    3,413.36/5,121.65 = 1,769.02/x
  3. Step 3: Cross multiply
    3,413.36x = 5,121.65 × 1,769.02
  4. Step 4: Simplify right side
    3,413.36x = 9,060,266.83
  5. Step 5: Solve for x
    x = 9,060,266.83/3,413.36
  6. Step 6: Final answer
    x = 2,654.35

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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.