Home / 4,092.62-6,139.39-1,318.66

Finding the Fourth Proportional to 4,092.62, 6,139.39 and 1,318.66

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Solution

The fourth proportional to 4,092.62, 6,139.39 and 1,318.66 is: 1,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,092.62 : 6,139.39 = 1,318.66 : x
  2. Step 2: Convert to fraction form
    4,092.62/6,139.39 = 1,318.66/x
  3. Step 3: Cross multiply
    4,092.62x = 6,139.39 × 1,318.66
  4. Step 4: Simplify right side
    4,092.62x = 8,095,768.02
  5. Step 5: Solve for x
    x = 8,095,768.02/4,092.62
  6. Step 6: Final answer
    x = 1,978.14

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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.