Home / 7,409.42-11,108.33-3,709.79

Finding the Fourth Proportional to 7,409.42, 11,108.33 and 3,709.79

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Solution

The fourth proportional to 7,409.42, 11,108.33 and 3,709.79 is: 5,561.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.42 : 11,108.33 = 3,709.79 : x
  2. Step 2: Convert to fraction form
    7,409.42/11,108.33 = 3,709.79/x
  3. Step 3: Cross multiply
    7,409.42x = 11,108.33 × 3,709.79
  4. Step 4: Simplify right side
    7,409.42x = 41,209,594.68
  5. Step 5: Solve for x
    x = 41,209,594.68/7,409.42
  6. Step 6: Final answer
    x = 5,561.78

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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.