Home / 7,491.48-11,238.44-2,811.86

Finding the Fourth Proportional to 7,491.48, 11,238.44 and 2,811.86

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Solution

The fourth proportional to 7,491.48, 11,238.44 and 2,811.86 is: 4,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.48 : 11,238.44 = 2,811.86 : x
  2. Step 2: Convert to fraction form
    7,491.48/11,238.44 = 2,811.86/x
  3. Step 3: Cross multiply
    7,491.48x = 11,238.44 × 2,811.86
  4. Step 4: Simplify right side
    7,491.48x = 31,600,849.65
  5. Step 5: Solve for x
    x = 31,600,849.65/7,491.48
  6. Step 6: Final answer
    x = 4,218.24

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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.