Home / 4,092.75-6,138.86-1,318.68

Finding the Fourth Proportional to 4,092.75, 6,138.86 and 1,318.68

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Solution

The fourth proportional to 4,092.75, 6,138.86 and 1,318.68 is: 1,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,092.75 : 6,138.86 = 1,318.68 : x
  2. Step 2: Convert to fraction form
    4,092.75/6,138.86 = 1,318.68/x
  3. Step 3: Cross multiply
    4,092.75x = 6,138.86 × 1,318.68
  4. Step 4: Simplify right side
    4,092.75x = 8,095,185.31
  5. Step 5: Solve for x
    x = 8,095,185.31/4,092.75
  6. Step 6: Final answer
    x = 1,977.93

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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.