Home / 5,413.09-7,470.28-3,174.66

Finding the Fourth Proportional to 5,413.09, 7,470.28 and 3,174.66

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Solution

The fourth proportional to 5,413.09, 7,470.28 and 3,174.66 is: 4,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.09 : 7,470.28 = 3,174.66 : x
  2. Step 2: Convert to fraction form
    5,413.09/7,470.28 = 3,174.66/x
  3. Step 3: Cross multiply
    5,413.09x = 7,470.28 × 3,174.66
  4. Step 4: Simplify right side
    5,413.09x = 23,715,599.10
  5. Step 5: Solve for x
    x = 23,715,599.10/5,413.09
  6. Step 6: Final answer
    x = 4,381.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.