Home / 3,413.05-4,709.99-1,920.96

Finding the Fourth Proportional to 3,413.05, 4,709.99 and 1,920.96

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Solution

The fourth proportional to 3,413.05, 4,709.99 and 1,920.96 is: 2,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.05 : 4,709.99 = 1,920.96 : x
  2. Step 2: Convert to fraction form
    3,413.05/4,709.99 = 1,920.96/x
  3. Step 3: Cross multiply
    3,413.05x = 4,709.99 × 1,920.96
  4. Step 4: Simplify right side
    3,413.05x = 9,047,702.39
  5. Step 5: Solve for x
    x = 9,047,702.39/3,413.05
  6. Step 6: Final answer
    x = 2,650.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.