Home / 3,431.09-5,147.01-1,350.81

Finding the Fourth Proportional to 3,431.09, 5,147.01 and 1,350.81

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Solution

The fourth proportional to 3,431.09, 5,147.01 and 1,350.81 is: 2,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.09 : 5,147.01 = 1,350.81 : x
  2. Step 2: Convert to fraction form
    3,431.09/5,147.01 = 1,350.81/x
  3. Step 3: Cross multiply
    3,431.09x = 5,147.01 × 1,350.81
  4. Step 4: Simplify right side
    3,431.09x = 6,952,632.58
  5. Step 5: Solve for x
    x = 6,952,632.58/3,431.09
  6. Step 6: Final answer
    x = 2,026.36

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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.