Home / 2,705.20-4,049.70-2,413.60

Finding the Fourth Proportional to 2,705.20, 4,049.70 and 2,413.60

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Solution

The fourth proportional to 2,705.20, 4,049.70 and 2,413.60 is: 3,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.20 : 4,049.70 = 2,413.60 : x
  2. Step 2: Convert to fraction form
    2,705.20/4,049.70 = 2,413.60/x
  3. Step 3: Cross multiply
    2,705.20x = 4,049.70 × 2,413.60
  4. Step 4: Simplify right side
    2,705.20x = 9,774,355.92
  5. Step 5: Solve for x
    x = 9,774,355.92/2,705.20
  6. Step 6: Final answer
    x = 3,613.17

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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.