Home / 3,778.99-5,213.52-2,185.35

Finding the Fourth Proportional to 3,778.99, 5,213.52 and 2,185.35

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Solution

The fourth proportional to 3,778.99, 5,213.52 and 2,185.35 is: 3,014.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.99 : 5,213.52 = 2,185.35 : x
  2. Step 2: Convert to fraction form
    3,778.99/5,213.52 = 2,185.35/x
  3. Step 3: Cross multiply
    3,778.99x = 5,213.52 × 2,185.35
  4. Step 4: Simplify right side
    3,778.99x = 11,393,365.93
  5. Step 5: Solve for x
    x = 11,393,365.93/3,778.99
  6. Step 6: Final answer
    x = 3,014.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.