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Finding the Fourth Proportional to 6,582.39, 9,879.15 and 2,636.40

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Solution

The fourth proportional to 6,582.39, 9,879.15 and 2,636.40 is: 3,956.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,582.39 : 9,879.15 = 2,636.40 : x
  2. Step 2: Convert to fraction form
    6,582.39/9,879.15 = 2,636.40/x
  3. Step 3: Cross multiply
    6,582.39x = 9,879.15 × 2,636.40
  4. Step 4: Simplify right side
    6,582.39x = 26,045,391.06
  5. Step 5: Solve for x
    x = 26,045,391.06/6,582.39
  6. Step 6: Final answer
    x = 3,956.83

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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.