Home / 2,279.48-3,418.83-635.99

Finding the Fourth Proportional to 2,279.48, 3,418.83 and 635.99

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Solution

The fourth proportional to 2,279.48, 3,418.83 and 635.99 is: 953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.48 : 3,418.83 = 635.99 : x
  2. Step 2: Convert to fraction form
    2,279.48/3,418.83 = 635.99/x
  3. Step 3: Cross multiply
    2,279.48x = 3,418.83 × 635.99
  4. Step 4: Simplify right side
    2,279.48x = 2,174,324.60
  5. Step 5: Solve for x
    x = 2,174,324.60/2,279.48
  6. Step 6: Final answer
    x = 953.87

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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.