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Finding the Fourth Proportional to 7,199.82, 10,800.18 and 2,519.64

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Solution

The fourth proportional to 7,199.82, 10,800.18 and 2,519.64 is: 3,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.82 : 10,800.18 = 2,519.64 : x
  2. Step 2: Convert to fraction form
    7,199.82/10,800.18 = 2,519.64/x
  3. Step 3: Cross multiply
    7,199.82x = 10,800.18 × 2,519.64
  4. Step 4: Simplify right side
    7,199.82x = 27,212,565.54
  5. Step 5: Solve for x
    x = 27,212,565.54/7,199.82
  6. Step 6: Final answer
    x = 3,779.62

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1.5x scale

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.