Home / 5,214.30-7,823.91-2,619.06

Finding the Fourth Proportional to 5,214.30, 7,823.91 and 2,619.06

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Solution

The fourth proportional to 5,214.30, 7,823.91 and 2,619.06 is: 3,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.30 : 7,823.91 = 2,619.06 : x
  2. Step 2: Convert to fraction form
    5,214.30/7,823.91 = 2,619.06/x
  3. Step 3: Cross multiply
    5,214.30x = 7,823.91 × 2,619.06
  4. Step 4: Simplify right side
    5,214.30x = 20,491,289.72
  5. Step 5: Solve for x
    x = 20,491,289.72/5,214.30
  6. Step 6: Final answer
    x = 3,929.83

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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.