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Finding the Fourth Proportional to 3,851.05, 5,772.55 and 2,794.31

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Solution

The fourth proportional to 3,851.05, 5,772.55 and 2,794.31 is: 4,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.05 : 5,772.55 = 2,794.31 : x
  2. Step 2: Convert to fraction form
    3,851.05/5,772.55 = 2,794.31/x
  3. Step 3: Cross multiply
    3,851.05x = 5,772.55 × 2,794.31
  4. Step 4: Simplify right side
    3,851.05x = 16,130,294.19
  5. Step 5: Solve for x
    x = 16,130,294.19/3,851.05
  6. Step 6: Final answer
    x = 4,188.54

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1.5x scale

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.