Home / 3,999.04-5,518.68-2,230.76

Finding the Fourth Proportional to 3,999.04, 5,518.68 and 2,230.76

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Solution

The fourth proportional to 3,999.04, 5,518.68 and 2,230.76 is: 3,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.04 : 5,518.68 = 2,230.76 : x
  2. Step 2: Convert to fraction form
    3,999.04/5,518.68 = 2,230.76/x
  3. Step 3: Cross multiply
    3,999.04x = 5,518.68 × 2,230.76
  4. Step 4: Simplify right side
    3,999.04x = 12,310,850.60
  5. Step 5: Solve for x
    x = 12,310,850.60/3,999.04
  6. Step 6: Final answer
    x = 3,078.45

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Half scale
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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.