Home / 6,996.81-10,485.33-3,878.25

Finding the Fourth Proportional to 6,996.81, 10,485.33 and 3,878.25

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Solution

The fourth proportional to 6,996.81, 10,485.33 and 3,878.25 is: 5,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,996.81 : 10,485.33 = 3,878.25 : x
  2. Step 2: Convert to fraction form
    6,996.81/10,485.33 = 3,878.25/x
  3. Step 3: Cross multiply
    6,996.81x = 10,485.33 × 3,878.25
  4. Step 4: Simplify right side
    6,996.81x = 40,664,731.07
  5. Step 5: Solve for x
    x = 40,664,731.07/6,996.81
  6. Step 6: Final answer
    x = 5,811.90

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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.