Home / 5,072.28-7,002.26-3,186.60

Finding the Fourth Proportional to 5,072.28, 7,002.26 and 3,186.60

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Solution

The fourth proportional to 5,072.28, 7,002.26 and 3,186.60 is: 4,399.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.28 : 7,002.26 = 3,186.60 : x
  2. Step 2: Convert to fraction form
    5,072.28/7,002.26 = 3,186.60/x
  3. Step 3: Cross multiply
    5,072.28x = 7,002.26 × 3,186.60
  4. Step 4: Simplify right side
    5,072.28x = 22,313,401.72
  5. Step 5: Solve for x
    x = 22,313,401.72/5,072.28
  6. Step 6: Final answer
    x = 4,399.09

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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.