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Finding the Fourth Proportional to 6,121, 8,446.98 and 3,326.50

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Solution

The fourth proportional to 6,121, 8,446.98 and 3,326.50 is: 4,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121 : 8,446.98 = 3,326.50 : x
  2. Step 2: Convert to fraction form
    6,121/8,446.98 = 3,326.50/x
  3. Step 3: Cross multiply
    6,121x = 8,446.98 × 3,326.50
  4. Step 4: Simplify right side
    6,121x = 28,098,878.97
  5. Step 5: Solve for x
    x = 28,098,878.97/6,121
  6. Step 6: Final answer
    x = 4,590.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.