Home / 4,413.85-6,620.78-2,771.55

Finding the Fourth Proportional to 4,413.85, 6,620.78 and 2,771.55

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Solution

The fourth proportional to 4,413.85, 6,620.78 and 2,771.55 is: 4,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,413.85 : 6,620.78 = 2,771.55 : x
  2. Step 2: Convert to fraction form
    4,413.85/6,620.78 = 2,771.55/x
  3. Step 3: Cross multiply
    4,413.85x = 6,620.78 × 2,771.55
  4. Step 4: Simplify right side
    4,413.85x = 18,349,822.81
  5. Step 5: Solve for x
    x = 18,349,822.81/4,413.85
  6. Step 6: Final answer
    x = 4,157.33

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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.