Home / 2,625.94-3,938.82-1,238.77

Finding the Fourth Proportional to 2,625.94, 3,938.82 and 1,238.77

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Solution

The fourth proportional to 2,625.94, 3,938.82 and 1,238.77 is: 1,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.94 : 3,938.82 = 1,238.77 : x
  2. Step 2: Convert to fraction form
    2,625.94/3,938.82 = 1,238.77/x
  3. Step 3: Cross multiply
    2,625.94x = 3,938.82 × 1,238.77
  4. Step 4: Simplify right side
    2,625.94x = 4,879,292.05
  5. Step 5: Solve for x
    x = 4,879,292.05/2,625.94
  6. Step 6: Final answer
    x = 1,858.11

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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.