Home / 6,121.43-8,447.06-3,395.79

Finding the Fourth Proportional to 6,121.43, 8,447.06 and 3,395.79

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Solution

The fourth proportional to 6,121.43, 8,447.06 and 3,395.79 is: 4,685.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.43 : 8,447.06 = 3,395.79 : x
  2. Step 2: Convert to fraction form
    6,121.43/8,447.06 = 3,395.79/x
  3. Step 3: Cross multiply
    6,121.43x = 8,447.06 × 3,395.79
  4. Step 4: Simplify right side
    6,121.43x = 28,684,424.90
  5. Step 5: Solve for x
    x = 28,684,424.90/6,121.43
  6. Step 6: Final answer
    x = 4,685.91

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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.