Home / 3,716.75-5,129.09-2,144.81

Finding the Fourth Proportional to 3,716.75, 5,129.09 and 2,144.81

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Solution

The fourth proportional to 3,716.75, 5,129.09 and 2,144.81 is: 2,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.75 : 5,129.09 = 2,144.81 : x
  2. Step 2: Convert to fraction form
    3,716.75/5,129.09 = 2,144.81/x
  3. Step 3: Cross multiply
    3,716.75x = 5,129.09 × 2,144.81
  4. Step 4: Simplify right side
    3,716.75x = 11,000,933.66
  5. Step 5: Solve for x
    x = 11,000,933.66/3,716.75
  6. Step 6: Final answer
    x = 2,959.82

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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.