Home / 3,855.51-5,322.66-2,969.37

Finding the Fourth Proportional to 3,855.51, 5,322.66 and 2,969.37

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Solution

The fourth proportional to 3,855.51, 5,322.66 and 2,969.37 is: 4,099.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.51 : 5,322.66 = 2,969.37 : x
  2. Step 2: Convert to fraction form
    3,855.51/5,322.66 = 2,969.37/x
  3. Step 3: Cross multiply
    3,855.51x = 5,322.66 × 2,969.37
  4. Step 4: Simplify right side
    3,855.51x = 15,804,946.92
  5. Step 5: Solve for x
    x = 15,804,946.92/3,855.51
  6. Step 6: Final answer
    x = 4,099.31

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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.