Home / 3,729.22-5,146.07-2,135.68

Finding the Fourth Proportional to 3,729.22, 5,146.07 and 2,135.68

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Solution

The fourth proportional to 3,729.22, 5,146.07 and 2,135.68 is: 2,947.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.22 : 5,146.07 = 2,135.68 : x
  2. Step 2: Convert to fraction form
    3,729.22/5,146.07 = 2,135.68/x
  3. Step 3: Cross multiply
    3,729.22x = 5,146.07 × 2,135.68
  4. Step 4: Simplify right side
    3,729.22x = 10,990,335.23
  5. Step 5: Solve for x
    x = 10,990,335.23/3,729.22
  6. Step 6: Final answer
    x = 2,947.09

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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.