Home / 3,383.90-4,669.68-1,891.81

Finding the Fourth Proportional to 3,383.90, 4,669.68 and 1,891.81

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Solution

The fourth proportional to 3,383.90, 4,669.68 and 1,891.81 is: 2,610.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.90 : 4,669.68 = 1,891.81 : x
  2. Step 2: Convert to fraction form
    3,383.90/4,669.68 = 1,891.81/x
  3. Step 3: Cross multiply
    3,383.90x = 4,669.68 × 1,891.81
  4. Step 4: Simplify right side
    3,383.90x = 8,834,147.32
  5. Step 5: Solve for x
    x = 8,834,147.32/3,383.90
  6. Step 6: Final answer
    x = 2,610.64

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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.