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Finding the Fourth Proportional to 3,896.32, 5,831.04 and 3,576.64

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Solution

The fourth proportional to 3,896.32, 5,831.04 and 3,576.64 is: 5,352.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.32 : 5,831.04 = 3,576.64 : x
  2. Step 2: Convert to fraction form
    3,896.32/5,831.04 = 3,576.64/x
  3. Step 3: Cross multiply
    3,896.32x = 5,831.04 × 3,576.64
  4. Step 4: Simplify right side
    3,896.32x = 20,855,530.91
  5. Step 5: Solve for x
    x = 20,855,530.91/3,896.32
  6. Step 6: Final answer
    x = 5,352.62

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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.