Home / 7,529.20-11,299.20-4,238.80

Finding the Fourth Proportional to 7,529.20, 11,299.20 and 4,238.80

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Solution

The fourth proportional to 7,529.20, 11,299.20 and 4,238.80 is: 6,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.20 : 11,299.20 = 4,238.80 : x
  2. Step 2: Convert to fraction form
    7,529.20/11,299.20 = 4,238.80/x
  3. Step 3: Cross multiply
    7,529.20x = 11,299.20 × 4,238.80
  4. Step 4: Simplify right side
    7,529.20x = 47,895,048.96
  5. Step 5: Solve for x
    x = 47,895,048.96/7,529.20
  6. Step 6: Final answer
    x = 6,361.24

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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.