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Finding the Fourth Proportional to 2,759.89, 3,807.12 and 1,749.73

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Solution

The fourth proportional to 2,759.89, 3,807.12 and 1,749.73 is: 2,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.89 : 3,807.12 = 1,749.73 : x
  2. Step 2: Convert to fraction form
    2,759.89/3,807.12 = 1,749.73/x
  3. Step 3: Cross multiply
    2,759.89x = 3,807.12 × 1,749.73
  4. Step 4: Simplify right side
    2,759.89x = 6,661,432.08
  5. Step 5: Solve for x
    x = 6,661,432.08/2,759.89
  6. Step 6: Final answer
    x = 2,413.66

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1.5x scale

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.