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Finding the Fourth Proportional to 3,489.38, 4,815.26 and 1,895.99

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Solution

The fourth proportional to 3,489.38, 4,815.26 and 1,895.99 is: 2,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.38 : 4,815.26 = 1,895.99 : x
  2. Step 2: Convert to fraction form
    3,489.38/4,815.26 = 1,895.99/x
  3. Step 3: Cross multiply
    3,489.38x = 4,815.26 × 1,895.99
  4. Step 4: Simplify right side
    3,489.38x = 9,129,684.81
  5. Step 5: Solve for x
    x = 9,129,684.81/3,489.38
  6. Step 6: Final answer
    x = 2,616.42

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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.