Home / 3,778.20-5,667.30-1,586.34

Finding the Fourth Proportional to 3,778.20, 5,667.30 and 1,586.34

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Solution

The fourth proportional to 3,778.20, 5,667.30 and 1,586.34 is: 2,379.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.20 : 5,667.30 = 1,586.34 : x
  2. Step 2: Convert to fraction form
    3,778.20/5,667.30 = 1,586.34/x
  3. Step 3: Cross multiply
    3,778.20x = 5,667.30 × 1,586.34
  4. Step 4: Simplify right side
    3,778.20x = 8,990,264.68
  5. Step 5: Solve for x
    x = 8,990,264.68/3,778.20
  6. Step 6: Final answer
    x = 2,379.51

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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.