Home / 3,999.00-5,518.63-2,230.57

Finding the Fourth Proportional to 3,999.00, 5,518.63 and 2,230.57

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Solution

The fourth proportional to 3,999.00, 5,518.63 and 2,230.57 is: 3,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.00 : 5,518.63 = 2,230.57 : x
  2. Step 2: Convert to fraction form
    3,999.00/5,518.63 = 2,230.57/x
  3. Step 3: Cross multiply
    3,999.00x = 5,518.63 × 2,230.57
  4. Step 4: Simplify right side
    3,999.00x = 12,309,700.21
  5. Step 5: Solve for x
    x = 12,309,700.21/3,999.00
  6. Step 6: Final answer
    x = 3,078.19

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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.