Home / 5,778.45-8,667.69-1,395.90

Finding the Fourth Proportional to 5,778.45, 8,667.69 and 1,395.90

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Solution

The fourth proportional to 5,778.45, 8,667.69 and 1,395.90 is: 2,093.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.45 : 8,667.69 = 1,395.90 : x
  2. Step 2: Convert to fraction form
    5,778.45/8,667.69 = 1,395.90/x
  3. Step 3: Cross multiply
    5,778.45x = 8,667.69 × 1,395.90
  4. Step 4: Simplify right side
    5,778.45x = 12,099,185.13
  5. Step 5: Solve for x
    x = 12,099,185.13/5,778.45
  6. Step 6: Final answer
    x = 2,093.85

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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.