Home / 4,108.75-6,166.78-1,918.71

Finding the Fourth Proportional to 4,108.75, 6,166.78 and 1,918.71

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Solution

The fourth proportional to 4,108.75, 6,166.78 and 1,918.71 is: 2,879.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,108.75 : 6,166.78 = 1,918.71 : x
  2. Step 2: Convert to fraction form
    4,108.75/6,166.78 = 1,918.71/x
  3. Step 3: Cross multiply
    4,108.75x = 6,166.78 × 1,918.71
  4. Step 4: Simplify right side
    4,108.75x = 11,832,262.45
  5. Step 5: Solve for x
    x = 11,832,262.45/4,108.75
  6. Step 6: Final answer
    x = 2,879.77

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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.