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Finding the Fourth Proportional to 3,293.76, 4,918.08 and 2,806.56

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Solution

The fourth proportional to 3,293.76, 4,918.08 and 2,806.56 is: 4,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293.76 : 4,918.08 = 2,806.56 : x
  2. Step 2: Convert to fraction form
    3,293.76/4,918.08 = 2,806.56/x
  3. Step 3: Cross multiply
    3,293.76x = 4,918.08 × 2,806.56
  4. Step 4: Simplify right side
    3,293.76x = 13,802,886.60
  5. Step 5: Solve for x
    x = 13,802,886.60/3,293.76
  6. Step 6: Final answer
    x = 4,190.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.