Home / 3,778.72-5,657.45-2,851.34

Finding the Fourth Proportional to 3,778.72, 5,657.45 and 2,851.34

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Solution

The fourth proportional to 3,778.72, 5,657.45 and 2,851.34 is: 4,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.72 : 5,657.45 = 2,851.34 : x
  2. Step 2: Convert to fraction form
    3,778.72/5,657.45 = 2,851.34/x
  3. Step 3: Cross multiply
    3,778.72x = 5,657.45 × 2,851.34
  4. Step 4: Simplify right side
    3,778.72x = 16,131,270.94
  5. Step 5: Solve for x
    x = 16,131,270.94/3,778.72
  6. Step 6: Final answer
    x = 4,268.98

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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.