Home / 5,413.84-8,118.43-2,080.08

Finding the Fourth Proportional to 5,413.84, 8,118.43 and 2,080.08

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Solution

The fourth proportional to 5,413.84, 8,118.43 and 2,080.08 is: 3,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.84 : 8,118.43 = 2,080.08 : x
  2. Step 2: Convert to fraction form
    5,413.84/8,118.43 = 2,080.08/x
  3. Step 3: Cross multiply
    5,413.84x = 8,118.43 × 2,080.08
  4. Step 4: Simplify right side
    5,413.84x = 16,886,978.67
  5. Step 5: Solve for x
    x = 16,886,978.67/5,413.84
  6. Step 6: Final answer
    x = 3,119.23

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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.