Home / 3,937.07-5,433.15-2,168.80

Finding the Fourth Proportional to 3,937.07, 5,433.15 and 2,168.80

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Solution

The fourth proportional to 3,937.07, 5,433.15 and 2,168.80 is: 2,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.07 : 5,433.15 = 2,168.80 : x
  2. Step 2: Convert to fraction form
    3,937.07/5,433.15 = 2,168.80/x
  3. Step 3: Cross multiply
    3,937.07x = 5,433.15 × 2,168.80
  4. Step 4: Simplify right side
    3,937.07x = 11,783,388.55
  5. Step 5: Solve for x
    x = 11,783,388.55/3,937.07
  6. Step 6: Final answer
    x = 2,992.93

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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.