Home / 7,639.57-11,459.34-2,092.96

Finding the Fourth Proportional to 7,639.57, 11,459.34 and 2,092.96

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Solution

The fourth proportional to 7,639.57, 11,459.34 and 2,092.96 is: 3,139.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.57 : 11,459.34 = 2,092.96 : x
  2. Step 2: Convert to fraction form
    7,639.57/11,459.34 = 2,092.96/x
  3. Step 3: Cross multiply
    7,639.57x = 11,459.34 × 2,092.96
  4. Step 4: Simplify right side
    7,639.57x = 23,983,940.25
  5. Step 5: Solve for x
    x = 23,983,940.25/7,639.57
  6. Step 6: Final answer
    x = 3,139.44

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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.