Home / 3,729.06-5,145.75-2,156.94

Finding the Fourth Proportional to 3,729.06, 5,145.75 and 2,156.94

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Solution

The fourth proportional to 3,729.06, 5,145.75 and 2,156.94 is: 2,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.06 : 5,145.75 = 2,156.94 : x
  2. Step 2: Convert to fraction form
    3,729.06/5,145.75 = 2,156.94/x
  3. Step 3: Cross multiply
    3,729.06x = 5,145.75 × 2,156.94
  4. Step 4: Simplify right side
    3,729.06x = 11,099,074.01
  5. Step 5: Solve for x
    x = 11,099,074.01/3,729.06
  6. Step 6: Final answer
    x = 2,976.37

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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.