Home / 7,745.21-11,611.28-3,359.36

Finding the Fourth Proportional to 7,745.21, 11,611.28 and 3,359.36

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Solution

The fourth proportional to 7,745.21, 11,611.28 and 3,359.36 is: 5,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.21 : 11,611.28 = 3,359.36 : x
  2. Step 2: Convert to fraction form
    7,745.21/11,611.28 = 3,359.36/x
  3. Step 3: Cross multiply
    7,745.21x = 11,611.28 × 3,359.36
  4. Step 4: Simplify right side
    7,745.21x = 39,006,494.41
  5. Step 5: Solve for x
    x = 39,006,494.41/7,745.21
  6. Step 6: Final answer
    x = 5,036.21

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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.