Home / 6,115.55-8,439.41-3,321.05

Finding the Fourth Proportional to 6,115.55, 8,439.41 and 3,321.05

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Solution

The fourth proportional to 6,115.55, 8,439.41 and 3,321.05 is: 4,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.55 : 8,439.41 = 3,321.05 : x
  2. Step 2: Convert to fraction form
    6,115.55/8,439.41 = 3,321.05/x
  3. Step 3: Cross multiply
    6,115.55x = 8,439.41 × 3,321.05
  4. Step 4: Simplify right side
    6,115.55x = 28,027,668.69
  5. Step 5: Solve for x
    x = 28,027,668.69/6,115.55
  6. Step 6: Final answer
    x = 4,583.02

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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.