Home / 7,218.03-10,819.95-3,468.78

Finding the Fourth Proportional to 7,218.03, 10,819.95 and 3,468.78

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Solution

The fourth proportional to 7,218.03, 10,819.95 and 3,468.78 is: 5,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.03 : 10,819.95 = 3,468.78 : x
  2. Step 2: Convert to fraction form
    7,218.03/10,819.95 = 3,468.78/x
  3. Step 3: Cross multiply
    7,218.03x = 10,819.95 × 3,468.78
  4. Step 4: Simplify right side
    7,218.03x = 37,532,026.16
  5. Step 5: Solve for x
    x = 37,532,026.16/7,218.03
  6. Step 6: Final answer
    x = 5,199.76

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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.