Home / 3,906.51-5,860.64-1,309.38

Finding the Fourth Proportional to 3,906.51, 5,860.64 and 1,309.38

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Solution

The fourth proportional to 3,906.51, 5,860.64 and 1,309.38 is: 1,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.51 : 5,860.64 = 1,309.38 : x
  2. Step 2: Convert to fraction form
    3,906.51/5,860.64 = 1,309.38/x
  3. Step 3: Cross multiply
    3,906.51x = 5,860.64 × 1,309.38
  4. Step 4: Simplify right side
    3,906.51x = 7,673,804.80
  5. Step 5: Solve for x
    x = 7,673,804.80/3,906.51
  6. Step 6: Final answer
    x = 1,964.36

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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.