Home / 3,394.88-4,680.32-3,321.28

Finding the Fourth Proportional to 3,394.88, 4,680.32 and 3,321.28

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Solution

The fourth proportional to 3,394.88, 4,680.32 and 3,321.28 is: 4,578.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.88 : 4,680.32 = 3,321.28 : x
  2. Step 2: Convert to fraction form
    3,394.88/4,680.32 = 3,321.28/x
  3. Step 3: Cross multiply
    3,394.88x = 4,680.32 × 3,321.28
  4. Step 4: Simplify right side
    3,394.88x = 15,544,653.21
  5. Step 5: Solve for x
    x = 15,544,653.21/3,394.88
  6. Step 6: Final answer
    x = 4,578.85

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1.5x scale

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.