Home / 3,135.15-4,322.12-1,955.43

Finding the Fourth Proportional to 3,135.15, 4,322.12 and 1,955.43

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Solution

The fourth proportional to 3,135.15, 4,322.12 and 1,955.43 is: 2,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.15 : 4,322.12 = 1,955.43 : x
  2. Step 2: Convert to fraction form
    3,135.15/4,322.12 = 1,955.43/x
  3. Step 3: Cross multiply
    3,135.15x = 4,322.12 × 1,955.43
  4. Step 4: Simplify right side
    3,135.15x = 8,451,593.33
  5. Step 5: Solve for x
    x = 8,451,593.33/3,135.15
  6. Step 6: Final answer
    x = 2,695.75

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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.