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Finding the Fourth Proportional to 6,818.72, 10,223.88 and 2,653.88

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Solution

The fourth proportional to 6,818.72, 10,223.88 and 2,653.88 is: 3,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.72 : 10,223.88 = 2,653.88 : x
  2. Step 2: Convert to fraction form
    6,818.72/10,223.88 = 2,653.88/x
  3. Step 3: Cross multiply
    6,818.72x = 10,223.88 × 2,653.88
  4. Step 4: Simplify right side
    6,818.72x = 27,132,950.65
  5. Step 5: Solve for x
    x = 27,132,950.65/6,818.72
  6. Step 6: Final answer
    x = 3,979.19

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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.