Home / 3,950.36-5,447.40-3,392.67

Finding the Fourth Proportional to 3,950.36, 5,447.40 and 3,392.67

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Solution

The fourth proportional to 3,950.36, 5,447.40 and 3,392.67 is: 4,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.36 : 5,447.40 = 3,392.67 : x
  2. Step 2: Convert to fraction form
    3,950.36/5,447.40 = 3,392.67/x
  3. Step 3: Cross multiply
    3,950.36x = 5,447.40 × 3,392.67
  4. Step 4: Simplify right side
    3,950.36x = 18,481,230.56
  5. Step 5: Solve for x
    x = 18,481,230.56/3,950.36
  6. Step 6: Final answer
    x = 4,678.37

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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.