Home / 3,778.35-5,667.62-1,438.05

Finding the Fourth Proportional to 3,778.35, 5,667.62 and 1,438.05

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Solution

The fourth proportional to 3,778.35, 5,667.62 and 1,438.05 is: 2,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.35 : 5,667.62 = 1,438.05 : x
  2. Step 2: Convert to fraction form
    3,778.35/5,667.62 = 1,438.05/x
  3. Step 3: Cross multiply
    3,778.35x = 5,667.62 × 1,438.05
  4. Step 4: Simplify right side
    3,778.35x = 8,150,320.94
  5. Step 5: Solve for x
    x = 8,150,320.94/3,778.35
  6. Step 6: Final answer
    x = 2,157.11

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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.