Home / 3,999.34-5,519.91-2,672.02

Finding the Fourth Proportional to 3,999.34, 5,519.91 and 2,672.02

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Solution

The fourth proportional to 3,999.34, 5,519.91 and 2,672.02 is: 3,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.34 : 5,519.91 = 2,672.02 : x
  2. Step 2: Convert to fraction form
    3,999.34/5,519.91 = 2,672.02/x
  3. Step 3: Cross multiply
    3,999.34x = 5,519.91 × 2,672.02
  4. Step 4: Simplify right side
    3,999.34x = 14,749,309.92
  5. Step 5: Solve for x
    x = 14,749,309.92/3,999.34
  6. Step 6: Final answer
    x = 3,687.94

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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.