Home / 3,778.85-5,657.88-2,851.59

Finding the Fourth Proportional to 3,778.85, 5,657.88 and 2,851.59

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Solution

The fourth proportional to 3,778.85, 5,657.88 and 2,851.59 is: 4,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.85 : 5,657.88 = 2,851.59 : x
  2. Step 2: Convert to fraction form
    3,778.85/5,657.88 = 2,851.59/x
  3. Step 3: Cross multiply
    3,778.85x = 5,657.88 × 2,851.59
  4. Step 4: Simplify right side
    3,778.85x = 16,133,954.03
  5. Step 5: Solve for x
    x = 16,133,954.03/3,778.85
  6. Step 6: Final answer
    x = 4,269.55

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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.