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Finding the Fourth Proportional to 6,872.58, 10,308.15 and 2,488.86

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Solution

The fourth proportional to 6,872.58, 10,308.15 and 2,488.86 is: 3,733.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.58 : 10,308.15 = 2,488.86 : x
  2. Step 2: Convert to fraction form
    6,872.58/10,308.15 = 2,488.86/x
  3. Step 3: Cross multiply
    6,872.58x = 10,308.15 × 2,488.86
  4. Step 4: Simplify right side
    6,872.58x = 25,655,542.21
  5. Step 5: Solve for x
    x = 25,655,542.21/6,872.58
  6. Step 6: Final answer
    x = 3,733.03

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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.