Home / 1,413.45-2,108.84-1,257.53

Finding the Fourth Proportional to 1,413.45, 2,108.84 and 1,257.53

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Solution

The fourth proportional to 1,413.45, 2,108.84 and 1,257.53 is: 1,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.45 : 2,108.84 = 1,257.53 : x
  2. Step 2: Convert to fraction form
    1,413.45/2,108.84 = 1,257.53/x
  3. Step 3: Cross multiply
    1,413.45x = 2,108.84 × 1,257.53
  4. Step 4: Simplify right side
    1,413.45x = 2,651,912.73
  5. Step 5: Solve for x
    x = 2,651,912.73/1,413.45
  6. Step 6: Final answer
    x = 1,876.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.