Home / 3,999.07-5,518.73-2,230.69

Finding the Fourth Proportional to 3,999.07, 5,518.73 and 2,230.69

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Solution

The fourth proportional to 3,999.07, 5,518.73 and 2,230.69 is: 3,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.07 : 5,518.73 = 2,230.69 : x
  2. Step 2: Convert to fraction form
    3,999.07/5,518.73 = 2,230.69/x
  3. Step 3: Cross multiply
    3,999.07x = 5,518.73 × 2,230.69
  4. Step 4: Simplify right side
    3,999.07x = 12,310,575.82
  5. Step 5: Solve for x
    x = 12,310,575.82/3,999.07
  6. Step 6: Final answer
    x = 3,078.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.