Home / 3,391.88-4,680.41-1,975.86

Finding the Fourth Proportional to 3,391.88, 4,680.41 and 1,975.86

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Solution

The fourth proportional to 3,391.88, 4,680.41 and 1,975.86 is: 2,726.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.88 : 4,680.41 = 1,975.86 : x
  2. Step 2: Convert to fraction form
    3,391.88/4,680.41 = 1,975.86/x
  3. Step 3: Cross multiply
    3,391.88x = 4,680.41 × 1,975.86
  4. Step 4: Simplify right side
    3,391.88x = 9,247,825.02
  5. Step 5: Solve for x
    x = 9,247,825.02/3,391.88
  6. Step 6: Final answer
    x = 2,726.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.