Home / 2,820.78-4,194.27-2,704.14

Finding the Fourth Proportional to 2,820.78, 4,194.27 and 2,704.14

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Solution

The fourth proportional to 2,820.78, 4,194.27 and 2,704.14 is: 4,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.78 : 4,194.27 = 2,704.14 : x
  2. Step 2: Convert to fraction form
    2,820.78/4,194.27 = 2,704.14/x
  3. Step 3: Cross multiply
    2,820.78x = 4,194.27 × 2,704.14
  4. Step 4: Simplify right side
    2,820.78x = 11,341,893.28
  5. Step 5: Solve for x
    x = 11,341,893.28/2,820.78
  6. Step 6: Final answer
    x = 4,020.84

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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.