Home / 2,228.70-3,075.87-1,284.54

Finding the Fourth Proportional to 2,228.70, 3,075.87 and 1,284.54

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Solution

The fourth proportional to 2,228.70, 3,075.87 and 1,284.54 is: 1,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.70 : 3,075.87 = 1,284.54 : x
  2. Step 2: Convert to fraction form
    2,228.70/3,075.87 = 1,284.54/x
  3. Step 3: Cross multiply
    2,228.70x = 3,075.87 × 1,284.54
  4. Step 4: Simplify right side
    2,228.70x = 3,951,078.05
  5. Step 5: Solve for x
    x = 3,951,078.05/2,228.70
  6. Step 6: Final answer
    x = 1,772.82

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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.