Home / 1,942.58-2,917.11-1,858.34

Finding the Fourth Proportional to 1,942.58, 2,917.11 and 1,858.34

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Solution

The fourth proportional to 1,942.58, 2,917.11 and 1,858.34 is: 2,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.58 : 2,917.11 = 1,858.34 : x
  2. Step 2: Convert to fraction form
    1,942.58/2,917.11 = 1,858.34/x
  3. Step 3: Cross multiply
    1,942.58x = 2,917.11 × 1,858.34
  4. Step 4: Simplify right side
    1,942.58x = 5,420,996.46
  5. Step 5: Solve for x
    x = 5,420,996.46/1,942.58
  6. Step 6: Final answer
    x = 2,790.61

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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.