Home / 3,999.16-5,518.66-2,230.96

Finding the Fourth Proportional to 3,999.16, 5,518.66 and 2,230.96

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Solution

The fourth proportional to 3,999.16, 5,518.66 and 2,230.96 is: 3,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.16 : 5,518.66 = 2,230.96 : x
  2. Step 2: Convert to fraction form
    3,999.16/5,518.66 = 2,230.96/x
  3. Step 3: Cross multiply
    3,999.16x = 5,518.66 × 2,230.96
  4. Step 4: Simplify right side
    3,999.16x = 12,311,909.71
  5. Step 5: Solve for x
    x = 12,311,909.71/3,999.16
  6. Step 6: Final answer
    x = 3,078.62

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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.