Home / 7,216.48-10,819.86-3,519.64

Finding the Fourth Proportional to 7,216.48, 10,819.86 and 3,519.64

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Solution

The fourth proportional to 7,216.48, 10,819.86 and 3,519.64 is: 5,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.48 : 10,819.86 = 3,519.64 : x
  2. Step 2: Convert to fraction form
    7,216.48/10,819.86 = 3,519.64/x
  3. Step 3: Cross multiply
    7,216.48x = 10,819.86 × 3,519.64
  4. Step 4: Simplify right side
    7,216.48x = 38,082,012.05
  5. Step 5: Solve for x
    x = 38,082,012.05/7,216.48
  6. Step 6: Final answer
    x = 5,277.09

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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.