Home / 3,631.37-5,443.73-1,321.25

Finding the Fourth Proportional to 3,631.37, 5,443.73 and 1,321.25

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Solution

The fourth proportional to 3,631.37, 5,443.73 and 1,321.25 is: 1,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.37 : 5,443.73 = 1,321.25 : x
  2. Step 2: Convert to fraction form
    3,631.37/5,443.73 = 1,321.25/x
  3. Step 3: Cross multiply
    3,631.37x = 5,443.73 × 1,321.25
  4. Step 4: Simplify right side
    3,631.37x = 7,192,521.66
  5. Step 5: Solve for x
    x = 7,192,521.66/3,631.37
  6. Step 6: Final answer
    x = 1,980.66

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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.