Home / 3,596.80-5,384.40-2,135.20

Finding the Fourth Proportional to 3,596.80, 5,384.40 and 2,135.20

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Solution

The fourth proportional to 3,596.80, 5,384.40 and 2,135.20 is: 3,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.80 : 5,384.40 = 2,135.20 : x
  2. Step 2: Convert to fraction form
    3,596.80/5,384.40 = 2,135.20/x
  3. Step 3: Cross multiply
    3,596.80x = 5,384.40 × 2,135.20
  4. Step 4: Simplify right side
    3,596.80x = 11,496,770.88
  5. Step 5: Solve for x
    x = 11,496,770.88/3,596.80
  6. Step 6: Final answer
    x = 3,196.39

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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.