Home / 2,438.85-3,651.80-1,266.78

Finding the Fourth Proportional to 2,438.85, 3,651.80 and 1,266.78

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Solution

The fourth proportional to 2,438.85, 3,651.80 and 1,266.78 is: 1,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.85 : 3,651.80 = 1,266.78 : x
  2. Step 2: Convert to fraction form
    2,438.85/3,651.80 = 1,266.78/x
  3. Step 3: Cross multiply
    2,438.85x = 3,651.80 × 1,266.78
  4. Step 4: Simplify right side
    2,438.85x = 4,626,020.87
  5. Step 5: Solve for x
    x = 4,626,020.87/2,438.85
  6. Step 6: Final answer
    x = 1,896.80

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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.