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Finding the Fourth Proportional to 5,099.94, 7,650.99 and 1,639.62

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Solution

The fourth proportional to 5,099.94, 7,650.99 and 1,639.62 is: 2,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.94 : 7,650.99 = 1,639.62 : x
  2. Step 2: Convert to fraction form
    5,099.94/7,650.99 = 1,639.62/x
  3. Step 3: Cross multiply
    5,099.94x = 7,650.99 × 1,639.62
  4. Step 4: Simplify right side
    5,099.94x = 12,544,716.22
  5. Step 5: Solve for x
    x = 12,544,716.22/5,099.94
  6. Step 6: Final answer
    x = 2,459.78

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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.