Home / 3,624.35-5,435.91-1,431.88

Finding the Fourth Proportional to 3,624.35, 5,435.91 and 1,431.88

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Solution

The fourth proportional to 3,624.35, 5,435.91 and 1,431.88 is: 2,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.35 : 5,435.91 = 1,431.88 : x
  2. Step 2: Convert to fraction form
    3,624.35/5,435.91 = 1,431.88/x
  3. Step 3: Cross multiply
    3,624.35x = 5,435.91 × 1,431.88
  4. Step 4: Simplify right side
    3,624.35x = 7,783,557.22
  5. Step 5: Solve for x
    x = 7,783,557.22/3,624.35
  6. Step 6: Final answer
    x = 2,147.58

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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.