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Finding the Fourth Proportional to 3,489.63, 5,235.31 and 1,735.47

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Solution

The fourth proportional to 3,489.63, 5,235.31 and 1,735.47 is: 2,603.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.63 : 5,235.31 = 1,735.47 : x
  2. Step 2: Convert to fraction form
    3,489.63/5,235.31 = 1,735.47/x
  3. Step 3: Cross multiply
    3,489.63x = 5,235.31 × 1,735.47
  4. Step 4: Simplify right side
    3,489.63x = 9,085,725.62
  5. Step 5: Solve for x
    x = 9,085,725.62/3,489.63
  6. Step 6: Final answer
    x = 2,603.63

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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.