Home / 1,288.44-1,930.23-1,283.58

Finding the Fourth Proportional to 1,288.44, 1,930.23 and 1,283.58

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Solution

The fourth proportional to 1,288.44, 1,930.23 and 1,283.58 is: 1,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288.44 : 1,930.23 = 1,283.58 : x
  2. Step 2: Convert to fraction form
    1,288.44/1,930.23 = 1,283.58/x
  3. Step 3: Cross multiply
    1,288.44x = 1,930.23 × 1,283.58
  4. Step 4: Simplify right side
    1,288.44x = 2,477,604.62
  5. Step 5: Solve for x
    x = 2,477,604.62/1,288.44
  6. Step 6: Final answer
    x = 1,922.95

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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.