Home / 2,956.28-4,078.41-2,168.96

Finding the Fourth Proportional to 2,956.28, 4,078.41 and 2,168.96

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Solution

The fourth proportional to 2,956.28, 4,078.41 and 2,168.96 is: 2,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.28 : 4,078.41 = 2,168.96 : x
  2. Step 2: Convert to fraction form
    2,956.28/4,078.41 = 2,168.96/x
  3. Step 3: Cross multiply
    2,956.28x = 4,078.41 × 2,168.96
  4. Step 4: Simplify right side
    2,956.28x = 8,845,908.15
  5. Step 5: Solve for x
    x = 8,845,908.15/2,956.28
  6. Step 6: Final answer
    x = 2,992.24

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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.