Home / 3,195.07-4,409.42-1,778.75

Finding the Fourth Proportional to 3,195.07, 4,409.42 and 1,778.75

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Solution

The fourth proportional to 3,195.07, 4,409.42 and 1,778.75 is: 2,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.07 : 4,409.42 = 1,778.75 : x
  2. Step 2: Convert to fraction form
    3,195.07/4,409.42 = 1,778.75/x
  3. Step 3: Cross multiply
    3,195.07x = 4,409.42 × 1,778.75
  4. Step 4: Simplify right side
    3,195.07x = 7,843,241.42
  5. Step 5: Solve for x
    x = 7,843,241.42/3,195.07
  6. Step 6: Final answer
    x = 2,454.80

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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.