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Finding the Fourth Proportional to 2,648.72, 3,655.30 and 1,469.76

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Solution

The fourth proportional to 2,648.72, 3,655.30 and 1,469.76 is: 2,028.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.72 : 3,655.30 = 1,469.76 : x
  2. Step 2: Convert to fraction form
    2,648.72/3,655.30 = 1,469.76/x
  3. Step 3: Cross multiply
    2,648.72x = 3,655.30 × 1,469.76
  4. Step 4: Simplify right side
    2,648.72x = 5,372,413.73
  5. Step 5: Solve for x
    x = 5,372,413.73/2,648.72
  6. Step 6: Final answer
    x = 2,028.31

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