Home / 3,105.93-4,653.36-1,641.81

Finding the Fourth Proportional to 3,105.93, 4,653.36 and 1,641.81

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Solution

The fourth proportional to 3,105.93, 4,653.36 and 1,641.81 is: 2,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.93 : 4,653.36 = 1,641.81 : x
  2. Step 2: Convert to fraction form
    3,105.93/4,653.36 = 1,641.81/x
  3. Step 3: Cross multiply
    3,105.93x = 4,653.36 × 1,641.81
  4. Step 4: Simplify right side
    3,105.93x = 7,639,932.98
  5. Step 5: Solve for x
    x = 7,639,932.98/3,105.93
  6. Step 6: Final answer
    x = 2,459.79

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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.