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Finding the Fourth Proportional to 2,788.89, 4,183.32 and 841.02

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Solution

The fourth proportional to 2,788.89, 4,183.32 and 841.02 is: 1,261.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.89 : 4,183.32 = 841.02 : x
  2. Step 2: Convert to fraction form
    2,788.89/4,183.32 = 841.02/x
  3. Step 3: Cross multiply
    2,788.89x = 4,183.32 × 841.02
  4. Step 4: Simplify right side
    2,788.89x = 3,518,255.79
  5. Step 5: Solve for x
    x = 3,518,255.79/2,788.89
  6. Step 6: Final answer
    x = 1,261.53

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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.