Home / 4,128.14-6,195.86-2,181.71

Finding the Fourth Proportional to 4,128.14, 6,195.86 and 2,181.71

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Solution

The fourth proportional to 4,128.14, 6,195.86 and 2,181.71 is: 3,274.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.14 : 6,195.86 = 2,181.71 : x
  2. Step 2: Convert to fraction form
    4,128.14/6,195.86 = 2,181.71/x
  3. Step 3: Cross multiply
    4,128.14x = 6,195.86 × 2,181.71
  4. Step 4: Simplify right side
    4,128.14x = 13,517,569.72
  5. Step 5: Solve for x
    x = 13,517,569.72/4,128.14
  6. Step 6: Final answer
    x = 3,274.49

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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.