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Finding the Fourth Proportional to 5,099.44, 7,649.16 and 1,639.12

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Solution

The fourth proportional to 5,099.44, 7,649.16 and 1,639.12 is: 2,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.44 : 7,649.16 = 1,639.12 : x
  2. Step 2: Convert to fraction form
    5,099.44/7,649.16 = 1,639.12/x
  3. Step 3: Cross multiply
    5,099.44x = 7,649.16 × 1,639.12
  4. Step 4: Simplify right side
    5,099.44x = 12,537,891.14
  5. Step 5: Solve for x
    x = 12,537,891.14/5,099.44
  6. Step 6: Final answer
    x = 2,458.68

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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.