Home / 3,413.70-5,112.90-1,771.74

Finding the Fourth Proportional to 3,413.70, 5,112.90 and 1,771.74

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Solution

The fourth proportional to 3,413.70, 5,112.90 and 1,771.74 is: 2,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.70 : 5,112.90 = 1,771.74 : x
  2. Step 2: Convert to fraction form
    3,413.70/5,112.90 = 1,771.74/x
  3. Step 3: Cross multiply
    3,413.70x = 5,112.90 × 1,771.74
  4. Step 4: Simplify right side
    3,413.70x = 9,058,729.45
  5. Step 5: Solve for x
    x = 9,058,729.45/3,413.70
  6. Step 6: Final answer
    x = 2,653.64

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1.5x scale

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.