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Finding the Fourth Proportional to 6,879.17, 10,323 and 2,718.47

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Solution

The fourth proportional to 6,879.17, 10,323 and 2,718.47 is: 4,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.17 : 10,323 = 2,718.47 : x
  2. Step 2: Convert to fraction form
    6,879.17/10,323 = 2,718.47/x
  3. Step 3: Cross multiply
    6,879.17x = 10,323 × 2,718.47
  4. Step 4: Simplify right side
    6,879.17x = 28,062,714.20
  5. Step 5: Solve for x
    x = 28,062,714.20/6,879.17
  6. Step 6: Final answer
    x = 4,079.38

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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.