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Finding the Fourth Proportional to 4,810.88, 6,638.08 and 2,821.44

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Solution

The fourth proportional to 4,810.88, 6,638.08 and 2,821.44 is: 3,893.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.88 : 6,638.08 = 2,821.44 : x
  2. Step 2: Convert to fraction form
    4,810.88/6,638.08 = 2,821.44/x
  3. Step 3: Cross multiply
    4,810.88x = 6,638.08 × 2,821.44
  4. Step 4: Simplify right side
    4,810.88x = 18,728,944.44
  5. Step 5: Solve for x
    x = 18,728,944.44/4,810.88
  6. Step 6: Final answer
    x = 3,893.04

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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.