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Finding the Fourth Proportional to 941.89, 1,413.33 and 669.73

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Solution

The fourth proportional to 941.89, 1,413.33 and 669.73 is: 1,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.89 : 1,413.33 = 669.73 : x
  2. Step 2: Convert to fraction form
    941.89/1,413.33 = 669.73/x
  3. Step 3: Cross multiply
    941.89x = 1,413.33 × 669.73
  4. Step 4: Simplify right side
    941.89x = 946,549.50
  5. Step 5: Solve for x
    x = 946,549.50/941.89
  6. Step 6: Final answer
    x = 1,004.95

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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.