Home / 6,786.40-10,174.80-3,085.60

Finding the Fourth Proportional to 6,786.40, 10,174.80 and 3,085.60

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Solution

The fourth proportional to 6,786.40, 10,174.80 and 3,085.60 is: 4,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.40 : 10,174.80 = 3,085.60 : x
  2. Step 2: Convert to fraction form
    6,786.40/10,174.80 = 3,085.60/x
  3. Step 3: Cross multiply
    6,786.40x = 10,174.80 × 3,085.60
  4. Step 4: Simplify right side
    6,786.40x = 31,395,362.88
  5. Step 5: Solve for x
    x = 31,395,362.88/6,786.40
  6. Step 6: Final answer
    x = 4,626.22

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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.