Home / 1,499.48-2,249.20-403.86

Finding the Fourth Proportional to 1,499.48, 2,249.20 and 403.86

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Solution

The fourth proportional to 1,499.48, 2,249.20 and 403.86 is: 605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.48 : 2,249.20 = 403.86 : x
  2. Step 2: Convert to fraction form
    1,499.48/2,249.20 = 403.86/x
  3. Step 3: Cross multiply
    1,499.48x = 2,249.20 × 403.86
  4. Step 4: Simplify right side
    1,499.48x = 908,361.91
  5. Step 5: Solve for x
    x = 908,361.91/1,499.48
  6. Step 6: Final answer
    x = 605.78

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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.