Home / 6,621.75-9,933.84-3,159

Finding the Fourth Proportional to 6,621.75, 9,933.84 and 3,159

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Solution

The fourth proportional to 6,621.75, 9,933.84 and 3,159 is: 4,739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.75 : 9,933.84 = 3,159 : x
  2. Step 2: Convert to fraction form
    6,621.75/9,933.84 = 3,159/x
  3. Step 3: Cross multiply
    6,621.75x = 9,933.84 × 3,159
  4. Step 4: Simplify right side
    6,621.75x = 31,381,000.56
  5. Step 5: Solve for x
    x = 31,381,000.56/6,621.75
  6. Step 6: Final answer
    x = 4,739.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.