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Finding the Fourth Proportional to 4,838.31, 6,676.38 and 2,821.41

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Solution

The fourth proportional to 4,838.31, 6,676.38 and 2,821.41 is: 3,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,838.31 : 6,676.38 = 2,821.41 : x
  2. Step 2: Convert to fraction form
    4,838.31/6,676.38 = 2,821.41/x
  3. Step 3: Cross multiply
    4,838.31x = 6,676.38 × 2,821.41
  4. Step 4: Simplify right side
    4,838.31x = 18,836,805.30
  5. Step 5: Solve for x
    x = 18,836,805.30/4,838.31
  6. Step 6: Final answer
    x = 3,893.26

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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.