Home / 5,413.30-8,120.81-2,293.32

Finding the Fourth Proportional to 5,413.30, 8,120.81 and 2,293.32

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Solution

The fourth proportional to 5,413.30, 8,120.81 and 2,293.32 is: 3,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.30 : 8,120.81 = 2,293.32 : x
  2. Step 2: Convert to fraction form
    5,413.30/8,120.81 = 2,293.32/x
  3. Step 3: Cross multiply
    5,413.30x = 8,120.81 × 2,293.32
  4. Step 4: Simplify right side
    5,413.30x = 18,623,615.99
  5. Step 5: Solve for x
    x = 18,623,615.99/5,413.30
  6. Step 6: Final answer
    x = 3,440.34

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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.