Home / 6,936.21-10,405.34-2,005.21

Finding the Fourth Proportional to 6,936.21, 10,405.34 and 2,005.21

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Solution

The fourth proportional to 6,936.21, 10,405.34 and 2,005.21 is: 3,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.21 : 10,405.34 = 2,005.21 : x
  2. Step 2: Convert to fraction form
    6,936.21/10,405.34 = 2,005.21/x
  3. Step 3: Cross multiply
    6,936.21x = 10,405.34 × 2,005.21
  4. Step 4: Simplify right side
    6,936.21x = 20,864,838.15
  5. Step 5: Solve for x
    x = 20,864,838.15/6,936.21
  6. Step 6: Final answer
    x = 3,008.10

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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.