Home / 2,820.81-4,228.92-1,893.54

Finding the Fourth Proportional to 2,820.81, 4,228.92 and 1,893.54

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Solution

The fourth proportional to 2,820.81, 4,228.92 and 1,893.54 is: 2,838.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.81 : 4,228.92 = 1,893.54 : x
  2. Step 2: Convert to fraction form
    2,820.81/4,228.92 = 1,893.54/x
  3. Step 3: Cross multiply
    2,820.81x = 4,228.92 × 1,893.54
  4. Step 4: Simplify right side
    2,820.81x = 8,007,629.18
  5. Step 5: Solve for x
    x = 8,007,629.18/2,820.81
  6. Step 6: Final answer
    x = 2,838.77

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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.