Home / 2,416.62-3,622.13-1,115.38

Finding the Fourth Proportional to 2,416.62, 3,622.13 and 1,115.38

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Solution

The fourth proportional to 2,416.62, 3,622.13 and 1,115.38 is: 1,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.62 : 3,622.13 = 1,115.38 : x
  2. Step 2: Convert to fraction form
    2,416.62/3,622.13 = 1,115.38/x
  3. Step 3: Cross multiply
    2,416.62x = 3,622.13 × 1,115.38
  4. Step 4: Simplify right side
    2,416.62x = 4,040,051.36
  5. Step 5: Solve for x
    x = 4,040,051.36/2,416.62
  6. Step 6: Final answer
    x = 1,671.78

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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.