Home / 3,553.45-5,326.62-1,994.20

Finding the Fourth Proportional to 3,553.45, 5,326.62 and 1,994.20

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Solution

The fourth proportional to 3,553.45, 5,326.62 and 1,994.20 is: 2,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.45 : 5,326.62 = 1,994.20 : x
  2. Step 2: Convert to fraction form
    3,553.45/5,326.62 = 1,994.20/x
  3. Step 3: Cross multiply
    3,553.45x = 5,326.62 × 1,994.20
  4. Step 4: Simplify right side
    3,553.45x = 10,622,345.60
  5. Step 5: Solve for x
    x = 10,622,345.60/3,553.45
  6. Step 6: Final answer
    x = 2,989.30

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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.