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Finding the Fourth Proportional to 7,099.88, 10,650.46 and 1,905.72

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Solution

The fourth proportional to 7,099.88, 10,650.46 and 1,905.72 is: 2,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.88 : 10,650.46 = 1,905.72 : x
  2. Step 2: Convert to fraction form
    7,099.88/10,650.46 = 1,905.72/x
  3. Step 3: Cross multiply
    7,099.88x = 10,650.46 × 1,905.72
  4. Step 4: Simplify right side
    7,099.88x = 20,296,794.63
  5. Step 5: Solve for x
    x = 20,296,794.63/7,099.88
  6. Step 6: Final answer
    x = 2,858.75

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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.