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Finding the Fourth Proportional to 6,324.92, 9,486.81 and 2,815.09

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Solution

The fourth proportional to 6,324.92, 9,486.81 and 2,815.09 is: 4,222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,324.92 : 9,486.81 = 2,815.09 : x
  2. Step 2: Convert to fraction form
    6,324.92/9,486.81 = 2,815.09/x
  3. Step 3: Cross multiply
    6,324.92x = 9,486.81 × 2,815.09
  4. Step 4: Simplify right side
    6,324.92x = 26,706,223.96
  5. Step 5: Solve for x
    x = 26,706,223.96/6,324.92
  6. Step 6: Final answer
    x = 4,222.38

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1.5x scale

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.