Home / 5,413.94-8,119.99-1,517.45

Finding the Fourth Proportional to 5,413.94, 8,119.99 and 1,517.45

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Solution

The fourth proportional to 5,413.94, 8,119.99 and 1,517.45 is: 2,275.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.94 : 8,119.99 = 1,517.45 : x
  2. Step 2: Convert to fraction form
    5,413.94/8,119.99 = 1,517.45/x
  3. Step 3: Cross multiply
    5,413.94x = 8,119.99 × 1,517.45
  4. Step 4: Simplify right side
    5,413.94x = 12,321,678.83
  5. Step 5: Solve for x
    x = 12,321,678.83/5,413.94
  6. Step 6: Final answer
    x = 2,275.92

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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.