Home / 7,928.96-11,895.84-2,663.36

Finding the Fourth Proportional to 7,928.96, 11,895.84 and 2,663.36

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Solution

The fourth proportional to 7,928.96, 11,895.84 and 2,663.36 is: 3,995.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.96 : 11,895.84 = 2,663.36 : x
  2. Step 2: Convert to fraction form
    7,928.96/11,895.84 = 2,663.36/x
  3. Step 3: Cross multiply
    7,928.96x = 11,895.84 × 2,663.36
  4. Step 4: Simplify right side
    7,928.96x = 31,682,904.42
  5. Step 5: Solve for x
    x = 31,682,904.42/7,928.96
  6. Step 6: Final answer
    x = 3,995.85

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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.