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Finding the Fourth Proportional to 3,383.35, 5,075.35 and 918.19

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Solution

The fourth proportional to 3,383.35, 5,075.35 and 918.19 is: 1,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.35 : 5,075.35 = 918.19 : x
  2. Step 2: Convert to fraction form
    3,383.35/5,075.35 = 918.19/x
  3. Step 3: Cross multiply
    3,383.35x = 5,075.35 × 918.19
  4. Step 4: Simplify right side
    3,383.35x = 4,660,135.62
  5. Step 5: Solve for x
    x = 4,660,135.62/3,383.35
  6. Step 6: Final answer
    x = 1,377.37

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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.