Home / 3,861.16-5,791.20-1,395.64

Finding the Fourth Proportional to 3,861.16, 5,791.20 and 1,395.64

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Solution

The fourth proportional to 3,861.16, 5,791.20 and 1,395.64 is: 2,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.16 : 5,791.20 = 1,395.64 : x
  2. Step 2: Convert to fraction form
    3,861.16/5,791.20 = 1,395.64/x
  3. Step 3: Cross multiply
    3,861.16x = 5,791.20 × 1,395.64
  4. Step 4: Simplify right side
    3,861.16x = 8,082,430.37
  5. Step 5: Solve for x
    x = 8,082,430.37/3,861.16
  6. Step 6: Final answer
    x = 2,093.26

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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.