Home / 3,759.85-5,188.97-2,166.56

Finding the Fourth Proportional to 3,759.85, 5,188.97 and 2,166.56

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Solution

The fourth proportional to 3,759.85, 5,188.97 and 2,166.56 is: 2,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.85 : 5,188.97 = 2,166.56 : x
  2. Step 2: Convert to fraction form
    3,759.85/5,188.97 = 2,166.56/x
  3. Step 3: Cross multiply
    3,759.85x = 5,188.97 × 2,166.56
  4. Step 4: Simplify right side
    3,759.85x = 11,242,213.77
  5. Step 5: Solve for x
    x = 11,242,213.77/3,759.85
  6. Step 6: Final answer
    x = 2,990.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.