Home / 4,112.01-6,128.92-3,878.48

Finding the Fourth Proportional to 4,112.01, 6,128.92 and 3,878.48

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Solution

The fourth proportional to 4,112.01, 6,128.92 and 3,878.48 is: 5,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.01 : 6,128.92 = 3,878.48 : x
  2. Step 2: Convert to fraction form
    4,112.01/6,128.92 = 3,878.48/x
  3. Step 3: Cross multiply
    4,112.01x = 6,128.92 × 3,878.48
  4. Step 4: Simplify right side
    4,112.01x = 23,770,863.00
  5. Step 5: Solve for x
    x = 23,770,863.00/4,112.01
  6. Step 6: Final answer
    x = 5,780.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.