Home / 6,072.57-8,380.26-3,420.09

Finding the Fourth Proportional to 6,072.57, 8,380.26 and 3,420.09

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Solution

The fourth proportional to 6,072.57, 8,380.26 and 3,420.09 is: 4,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,072.57 : 8,380.26 = 3,420.09 : x
  2. Step 2: Convert to fraction form
    6,072.57/8,380.26 = 3,420.09/x
  3. Step 3: Cross multiply
    6,072.57x = 8,380.26 × 3,420.09
  4. Step 4: Simplify right side
    6,072.57x = 28,661,243.42
  5. Step 5: Solve for x
    x = 28,661,243.42/6,072.57
  6. Step 6: Final answer
    x = 4,719.79

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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.