Home / 3,521.37-5,278.97-1,331.64

Finding the Fourth Proportional to 3,521.37, 5,278.97 and 1,331.64

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Solution

The fourth proportional to 3,521.37, 5,278.97 and 1,331.64 is: 1,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.37 : 5,278.97 = 1,331.64 : x
  2. Step 2: Convert to fraction form
    3,521.37/5,278.97 = 1,331.64/x
  3. Step 3: Cross multiply
    3,521.37x = 5,278.97 × 1,331.64
  4. Step 4: Simplify right side
    3,521.37x = 7,029,690.94
  5. Step 5: Solve for x
    x = 7,029,690.94/3,521.37
  6. Step 6: Final answer
    x = 1,996.29

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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.