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Finding the Fourth Proportional to 6,898.78, 10,348.20 and 2,739.82

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Solution

The fourth proportional to 6,898.78, 10,348.20 and 2,739.82 is: 4,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.78 : 10,348.20 = 2,739.82 : x
  2. Step 2: Convert to fraction form
    6,898.78/10,348.20 = 2,739.82/x
  3. Step 3: Cross multiply
    6,898.78x = 10,348.20 × 2,739.82
  4. Step 4: Simplify right side
    6,898.78x = 28,352,205.32
  5. Step 5: Solve for x
    x = 28,352,205.32/6,898.78
  6. Step 6: Final answer
    x = 4,109.74

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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.