Home / 2,285.66-3,427.79-1,189.43

Finding the Fourth Proportional to 2,285.66, 3,427.79 and 1,189.43

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Solution

The fourth proportional to 2,285.66, 3,427.79 and 1,189.43 is: 1,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.66 : 3,427.79 = 1,189.43 : x
  2. Step 2: Convert to fraction form
    2,285.66/3,427.79 = 1,189.43/x
  3. Step 3: Cross multiply
    2,285.66x = 3,427.79 × 1,189.43
  4. Step 4: Simplify right side
    2,285.66x = 4,077,093.17
  5. Step 5: Solve for x
    x = 4,077,093.17/2,285.66
  6. Step 6: Final answer
    x = 1,783.77

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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.