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Finding the Fourth Proportional to 3,758.63, 5,638.23 and 1,293.44

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Solution

The fourth proportional to 3,758.63, 5,638.23 and 1,293.44 is: 1,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.63 : 5,638.23 = 1,293.44 : x
  2. Step 2: Convert to fraction form
    3,758.63/5,638.23 = 1,293.44/x
  3. Step 3: Cross multiply
    3,758.63x = 5,638.23 × 1,293.44
  4. Step 4: Simplify right side
    3,758.63x = 7,292,684.02
  5. Step 5: Solve for x
    x = 7,292,684.02/3,758.63
  6. Step 6: Final answer
    x = 1,940.25

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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.