Home / 3,900.45-5,850.07-1,268.06

Finding the Fourth Proportional to 3,900.45, 5,850.07 and 1,268.06

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Solution

The fourth proportional to 3,900.45, 5,850.07 and 1,268.06 is: 1,901.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.45 : 5,850.07 = 1,268.06 : x
  2. Step 2: Convert to fraction form
    3,900.45/5,850.07 = 1,268.06/x
  3. Step 3: Cross multiply
    3,900.45x = 5,850.07 × 1,268.06
  4. Step 4: Simplify right side
    3,900.45x = 7,418,214.48
  5. Step 5: Solve for x
    x = 7,418,214.48/3,900.45
  6. Step 6: Final answer
    x = 1,901.88

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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.