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Finding the Fourth Proportional to 2,056.01, 3,084 and 823.70

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Solution

The fourth proportional to 2,056.01, 3,084 and 823.70 is: 1,235.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.01 : 3,084 = 823.70 : x
  2. Step 2: Convert to fraction form
    2,056.01/3,084 = 823.70/x
  3. Step 3: Cross multiply
    2,056.01x = 3,084 × 823.70
  4. Step 4: Simplify right side
    2,056.01x = 2,540,290.80
  5. Step 5: Solve for x
    x = 2,540,290.80/2,056.01
  6. Step 6: Final answer
    x = 1,235.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.