Home / 7,195.31-10,786.57-2,811.77

Finding the Fourth Proportional to 7,195.31, 10,786.57 and 2,811.77

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Solution

The fourth proportional to 7,195.31, 10,786.57 and 2,811.77 is: 4,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.31 : 10,786.57 = 2,811.77 : x
  2. Step 2: Convert to fraction form
    7,195.31/10,786.57 = 2,811.77/x
  3. Step 3: Cross multiply
    7,195.31x = 10,786.57 × 2,811.77
  4. Step 4: Simplify right side
    7,195.31x = 30,329,353.93
  5. Step 5: Solve for x
    x = 30,329,353.93/7,195.31
  6. Step 6: Final answer
    x = 4,215.16

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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.