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Finding the Fourth Proportional to 3,083.90, 4,602.12 and 2,755.84

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Solution

The fourth proportional to 3,083.90, 4,602.12 and 2,755.84 is: 4,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.90 : 4,602.12 = 2,755.84 : x
  2. Step 2: Convert to fraction form
    3,083.90/4,602.12 = 2,755.84/x
  3. Step 3: Cross multiply
    3,083.90x = 4,602.12 × 2,755.84
  4. Step 4: Simplify right side
    3,083.90x = 12,682,706.38
  5. Step 5: Solve for x
    x = 12,682,706.38/3,083.90
  6. Step 6: Final answer
    x = 4,112.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.