Home / 3,521.22-5,279.87-1,442.68

Finding the Fourth Proportional to 3,521.22, 5,279.87 and 1,442.68

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Solution

The fourth proportional to 3,521.22, 5,279.87 and 1,442.68 is: 2,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.22 : 5,279.87 = 1,442.68 : x
  2. Step 2: Convert to fraction form
    3,521.22/5,279.87 = 1,442.68/x
  3. Step 3: Cross multiply
    3,521.22x = 5,279.87 × 1,442.68
  4. Step 4: Simplify right side
    3,521.22x = 7,617,162.85
  5. Step 5: Solve for x
    x = 7,617,162.85/3,521.22
  6. Step 6: Final answer
    x = 2,163.22

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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.