Home / 2,266.80-3,394.73-1,289.94

Finding the Fourth Proportional to 2,266.80, 3,394.73 and 1,289.94

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Solution

The fourth proportional to 2,266.80, 3,394.73 and 1,289.94 is: 1,931.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.80 : 3,394.73 = 1,289.94 : x
  2. Step 2: Convert to fraction form
    2,266.80/3,394.73 = 1,289.94/x
  3. Step 3: Cross multiply
    2,266.80x = 3,394.73 × 1,289.94
  4. Step 4: Simplify right side
    2,266.80x = 4,378,991.57
  5. Step 5: Solve for x
    x = 4,378,991.57/2,266.80
  6. Step 6: Final answer
    x = 1,931.79

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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.