Home / 3,113.03-4,293.66-2,168.88

Finding the Fourth Proportional to 3,113.03, 4,293.66 and 2,168.88

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Solution

The fourth proportional to 3,113.03, 4,293.66 and 2,168.88 is: 2,991.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.03 : 4,293.66 = 2,168.88 : x
  2. Step 2: Convert to fraction form
    3,113.03/4,293.66 = 2,168.88/x
  3. Step 3: Cross multiply
    3,113.03x = 4,293.66 × 2,168.88
  4. Step 4: Simplify right side
    3,113.03x = 9,312,413.13
  5. Step 5: Solve for x
    x = 9,312,413.13/3,113.03
  6. Step 6: Final answer
    x = 2,991.43

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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.