Home / 3,072.66-4,238.65-2,078.27

Finding the Fourth Proportional to 3,072.66, 4,238.65 and 2,078.27

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Solution

The fourth proportional to 3,072.66, 4,238.65 and 2,078.27 is: 2,866.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.66 : 4,238.65 = 2,078.27 : x
  2. Step 2: Convert to fraction form
    3,072.66/4,238.65 = 2,078.27/x
  3. Step 3: Cross multiply
    3,072.66x = 4,238.65 × 2,078.27
  4. Step 4: Simplify right side
    3,072.66x = 8,809,059.14
  5. Step 5: Solve for x
    x = 8,809,059.14/3,072.66
  6. Step 6: Final answer
    x = 2,866.92

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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.