Home / 6,811.70-9,400.74-3,828.26

Finding the Fourth Proportional to 6,811.70, 9,400.74 and 3,828.26

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Solution

The fourth proportional to 6,811.70, 9,400.74 and 3,828.26 is: 5,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.70 : 9,400.74 = 3,828.26 : x
  2. Step 2: Convert to fraction form
    6,811.70/9,400.74 = 3,828.26/x
  3. Step 3: Cross multiply
    6,811.70x = 9,400.74 × 3,828.26
  4. Step 4: Simplify right side
    6,811.70x = 35,988,429.91
  5. Step 5: Solve for x
    x = 35,988,429.91/6,811.70
  6. Step 6: Final answer
    x = 5,283.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.