Home / 3,129.27-4,316.51-2,067.05

Finding the Fourth Proportional to 3,129.27, 4,316.51 and 2,067.05

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Solution

The fourth proportional to 3,129.27, 4,316.51 and 2,067.05 is: 2,851.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.27 : 4,316.51 = 2,067.05 : x
  2. Step 2: Convert to fraction form
    3,129.27/4,316.51 = 2,067.05/x
  3. Step 3: Cross multiply
    3,129.27x = 4,316.51 × 2,067.05
  4. Step 4: Simplify right side
    3,129.27x = 8,922,425.58
  5. Step 5: Solve for x
    x = 8,922,425.58/3,129.27
  6. Step 6: Final answer
    x = 2,851.28

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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.