Home / 2,418.75-3,628.26-938.66

Finding the Fourth Proportional to 2,418.75, 3,628.26 and 938.66

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Solution

The fourth proportional to 2,418.75, 3,628.26 and 938.66 is: 1,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.75 : 3,628.26 = 938.66 : x
  2. Step 2: Convert to fraction form
    2,418.75/3,628.26 = 938.66/x
  3. Step 3: Cross multiply
    2,418.75x = 3,628.26 × 938.66
  4. Step 4: Simplify right side
    2,418.75x = 3,405,684.39
  5. Step 5: Solve for x
    x = 3,405,684.39/2,418.75
  6. Step 6: Final answer
    x = 1,408.03

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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.