Home / 6,643.18-9,964.80-2,747.70

Finding the Fourth Proportional to 6,643.18, 9,964.80 and 2,747.70

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Solution

The fourth proportional to 6,643.18, 9,964.80 and 2,747.70 is: 4,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.18 : 9,964.80 = 2,747.70 : x
  2. Step 2: Convert to fraction form
    6,643.18/9,964.80 = 2,747.70/x
  3. Step 3: Cross multiply
    6,643.18x = 9,964.80 × 2,747.70
  4. Step 4: Simplify right side
    6,643.18x = 27,380,280.96
  5. Step 5: Solve for x
    x = 27,380,280.96/6,643.18
  6. Step 6: Final answer
    x = 4,121.56

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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.