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Finding the Fourth Proportional to 3,578.64, 4,940.06 and 3,354.47

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Solution

The fourth proportional to 3,578.64, 4,940.06 and 3,354.47 is: 4,630.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.64 : 4,940.06 = 3,354.47 : x
  2. Step 2: Convert to fraction form
    3,578.64/4,940.06 = 3,354.47/x
  3. Step 3: Cross multiply
    3,578.64x = 4,940.06 × 3,354.47
  4. Step 4: Simplify right side
    3,578.64x = 16,571,283.07
  5. Step 5: Solve for x
    x = 16,571,283.07/3,578.64
  6. Step 6: Final answer
    x = 4,630.61

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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.