Home / 5,778.48-8,667.72-3,311.60

Finding the Fourth Proportional to 5,778.48, 8,667.72 and 3,311.60

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Solution

The fourth proportional to 5,778.48, 8,667.72 and 3,311.60 is: 4,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.48 : 8,667.72 = 3,311.60 : x
  2. Step 2: Convert to fraction form
    5,778.48/8,667.72 = 3,311.60/x
  3. Step 3: Cross multiply
    5,778.48x = 8,667.72 × 3,311.60
  4. Step 4: Simplify right side
    5,778.48x = 28,704,021.55
  5. Step 5: Solve for x
    x = 28,704,021.55/5,778.48
  6. Step 6: Final answer
    x = 4,967.40

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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.