Home / 3,101.73-4,651.63-1,640.08

Finding the Fourth Proportional to 3,101.73, 4,651.63 and 1,640.08

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Solution

The fourth proportional to 3,101.73, 4,651.63 and 1,640.08 is: 2,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.73 : 4,651.63 = 1,640.08 : x
  2. Step 2: Convert to fraction form
    3,101.73/4,651.63 = 1,640.08/x
  3. Step 3: Cross multiply
    3,101.73x = 4,651.63 × 1,640.08
  4. Step 4: Simplify right side
    3,101.73x = 7,629,045.33
  5. Step 5: Solve for x
    x = 7,629,045.33/3,101.73
  6. Step 6: Final answer
    x = 2,459.61

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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.