Home / 3,079.67-4,620.30-1,105.22

Finding the Fourth Proportional to 3,079.67, 4,620.30 and 1,105.22

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Solution

The fourth proportional to 3,079.67, 4,620.30 and 1,105.22 is: 1,658.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.67 : 4,620.30 = 1,105.22 : x
  2. Step 2: Convert to fraction form
    3,079.67/4,620.30 = 1,105.22/x
  3. Step 3: Cross multiply
    3,079.67x = 4,620.30 × 1,105.22
  4. Step 4: Simplify right side
    3,079.67x = 5,106,424.86
  5. Step 5: Solve for x
    x = 5,106,424.86/3,079.67
  6. Step 6: Final answer
    x = 1,658.11

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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.