Home / 6,139.44-8,471.16-3,621.42

Finding the Fourth Proportional to 6,139.44, 8,471.16 and 3,621.42

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Solution

The fourth proportional to 6,139.44, 8,471.16 and 3,621.42 is: 4,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.44 : 8,471.16 = 3,621.42 : x
  2. Step 2: Convert to fraction form
    6,139.44/8,471.16 = 3,621.42/x
  3. Step 3: Cross multiply
    6,139.44x = 8,471.16 × 3,621.42
  4. Step 4: Simplify right side
    6,139.44x = 30,677,628.25
  5. Step 5: Solve for x
    x = 30,677,628.25/6,139.44
  6. Step 6: Final answer
    x = 4,996.81

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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.