Home / 7,005.96-10,509-1,811.84

Finding the Fourth Proportional to 7,005.96, 10,509 and 1,811.84

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Solution

The fourth proportional to 7,005.96, 10,509 and 1,811.84 is: 2,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.96 : 10,509 = 1,811.84 : x
  2. Step 2: Convert to fraction form
    7,005.96/10,509 = 1,811.84/x
  3. Step 3: Cross multiply
    7,005.96x = 10,509 × 1,811.84
  4. Step 4: Simplify right side
    7,005.96x = 19,040,626.56
  5. Step 5: Solve for x
    x = 19,040,626.56/7,005.96
  6. Step 6: Final answer
    x = 2,717.78

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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.