Home / 7,639.24-11,459.20-2,092.46

Finding the Fourth Proportional to 7,639.24, 11,459.20 and 2,092.46

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Solution

The fourth proportional to 7,639.24, 11,459.20 and 2,092.46 is: 3,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.24 : 11,459.20 = 2,092.46 : x
  2. Step 2: Convert to fraction form
    7,639.24/11,459.20 = 2,092.46/x
  3. Step 3: Cross multiply
    7,639.24x = 11,459.20 × 2,092.46
  4. Step 4: Simplify right side
    7,639.24x = 23,977,917.63
  5. Step 5: Solve for x
    x = 23,977,917.63/7,639.24
  6. Step 6: Final answer
    x = 3,138.78

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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.