Home / 1,455.98-2,183.90-360.30

Finding the Fourth Proportional to 1,455.98, 2,183.90 and 360.30

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Solution

The fourth proportional to 1,455.98, 2,183.90 and 360.30 is: 540.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.98 : 2,183.90 = 360.30 : x
  2. Step 2: Convert to fraction form
    1,455.98/2,183.90 = 360.30/x
  3. Step 3: Cross multiply
    1,455.98x = 2,183.90 × 360.30
  4. Step 4: Simplify right side
    1,455.98x = 786,857.37
  5. Step 5: Solve for x
    x = 786,857.37/1,455.98
  6. Step 6: Final answer
    x = 540.43

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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.