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Finding the Fourth Proportional to 6,387.93, 9,584.61 and 2,690.97

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Solution

The fourth proportional to 6,387.93, 9,584.61 and 2,690.97 is: 4,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.93 : 9,584.61 = 2,690.97 : x
  2. Step 2: Convert to fraction form
    6,387.93/9,584.61 = 2,690.97/x
  3. Step 3: Cross multiply
    6,387.93x = 9,584.61 × 2,690.97
  4. Step 4: Simplify right side
    6,387.93x = 25,791,897.97
  5. Step 5: Solve for x
    x = 25,791,897.97/6,387.93
  6. Step 6: Final answer
    x = 4,037.60

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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.