Home / 4,413.60-6,621.42-1,640.28

Finding the Fourth Proportional to 4,413.60, 6,621.42 and 1,640.28

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Solution

The fourth proportional to 4,413.60, 6,621.42 and 1,640.28 is: 2,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,413.60 : 6,621.42 = 1,640.28 : x
  2. Step 2: Convert to fraction form
    4,413.60/6,621.42 = 1,640.28/x
  3. Step 3: Cross multiply
    4,413.60x = 6,621.42 × 1,640.28
  4. Step 4: Simplify right side
    4,413.60x = 10,860,982.80
  5. Step 5: Solve for x
    x = 10,860,982.80/4,413.60
  6. Step 6: Final answer
    x = 2,460.80

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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.