Home / 4,279.84-6,413.60-2,520.70

Finding the Fourth Proportional to 4,279.84, 6,413.60 and 2,520.70

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Solution

The fourth proportional to 4,279.84, 6,413.60 and 2,520.70 is: 3,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.84 : 6,413.60 = 2,520.70 : x
  2. Step 2: Convert to fraction form
    4,279.84/6,413.60 = 2,520.70/x
  3. Step 3: Cross multiply
    4,279.84x = 6,413.60 × 2,520.70
  4. Step 4: Simplify right side
    4,279.84x = 16,166,751.79
  5. Step 5: Solve for x
    x = 16,166,751.79/4,279.84
  6. Step 6: Final answer
    x = 3,777.42

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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.