Home / 5,399.46-7,450.72-3,983.92

Finding the Fourth Proportional to 5,399.46, 7,450.72 and 3,983.92

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Solution

The fourth proportional to 5,399.46, 7,450.72 and 3,983.92 is: 5,497.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.46 : 7,450.72 = 3,983.92 : x
  2. Step 2: Convert to fraction form
    5,399.46/7,450.72 = 3,983.92/x
  3. Step 3: Cross multiply
    5,399.46x = 7,450.72 × 3,983.92
  4. Step 4: Simplify right side
    5,399.46x = 29,683,043.84
  5. Step 5: Solve for x
    x = 29,683,043.84/5,399.46
  6. Step 6: Final answer
    x = 5,497.41

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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.