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Finding the Fourth Proportional to 3,480.75, 5,218.05 and 1,835.37

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Solution

The fourth proportional to 3,480.75, 5,218.05 and 1,835.37 is: 2,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.75 : 5,218.05 = 1,835.37 : x
  2. Step 2: Convert to fraction form
    3,480.75/5,218.05 = 1,835.37/x
  3. Step 3: Cross multiply
    3,480.75x = 5,218.05 × 1,835.37
  4. Step 4: Simplify right side
    3,480.75x = 9,577,051.16
  5. Step 5: Solve for x
    x = 9,577,051.16/3,480.75
  6. Step 6: Final answer
    x = 2,751.44

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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.