Home / 1,228.37-1,841.94-1,111.73

Finding the Fourth Proportional to 1,228.37, 1,841.94 and 1,111.73

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Solution

The fourth proportional to 1,228.37, 1,841.94 and 1,111.73 is: 1,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.37 : 1,841.94 = 1,111.73 : x
  2. Step 2: Convert to fraction form
    1,228.37/1,841.94 = 1,111.73/x
  3. Step 3: Cross multiply
    1,228.37x = 1,841.94 × 1,111.73
  4. Step 4: Simplify right side
    1,228.37x = 2,047,730.75
  5. Step 5: Solve for x
    x = 2,047,730.75/1,228.37
  6. Step 6: Final answer
    x = 1,667.04

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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.