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Finding the Fourth Proportional to 4,609.55, 6,896.81 and 2,799.61

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Solution

The fourth proportional to 4,609.55, 6,896.81 and 2,799.61 is: 4,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.55 : 6,896.81 = 2,799.61 : x
  2. Step 2: Convert to fraction form
    4,609.55/6,896.81 = 2,799.61/x
  3. Step 3: Cross multiply
    4,609.55x = 6,896.81 × 2,799.61
  4. Step 4: Simplify right side
    4,609.55x = 19,308,368.00
  5. Step 5: Solve for x
    x = 19,308,368.00/4,609.55
  6. Step 6: Final answer
    x = 4,188.77

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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.