Home / 3,880.24-5,818.38-1,906

Finding the Fourth Proportional to 3,880.24, 5,818.38 and 1,906

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Solution

The fourth proportional to 3,880.24, 5,818.38 and 1,906 is: 2,858.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.24 : 5,818.38 = 1,906 : x
  2. Step 2: Convert to fraction form
    3,880.24/5,818.38 = 1,906/x
  3. Step 3: Cross multiply
    3,880.24x = 5,818.38 × 1,906
  4. Step 4: Simplify right side
    3,880.24x = 11,089,832.28
  5. Step 5: Solve for x
    x = 11,089,832.28/3,880.24
  6. Step 6: Final answer
    x = 2,858.03

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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.