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Finding the Fourth Proportional to 1,469.25, 2,012.90 and 1,413.90

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Solution

The fourth proportional to 1,469.25, 2,012.90 and 1,413.90 is: 1,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.25 : 2,012.90 = 1,413.90 : x
  2. Step 2: Convert to fraction form
    1,469.25/2,012.90 = 1,413.90/x
  3. Step 3: Cross multiply
    1,469.25x = 2,012.90 × 1,413.90
  4. Step 4: Simplify right side
    1,469.25x = 2,846,032.24
  5. Step 5: Solve for x
    x = 2,846,032.24/1,469.25
  6. Step 6: Final answer
    x = 1,937.06

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.