Home / 3,451.28-5,195.74-3,145.12

Finding the Fourth Proportional to 3,451.28, 5,195.74 and 3,145.12

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Solution

The fourth proportional to 3,451.28, 5,195.74 and 3,145.12 is: 4,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.28 : 5,195.74 = 3,145.12 : x
  2. Step 2: Convert to fraction form
    3,451.28/5,195.74 = 3,145.12/x
  3. Step 3: Cross multiply
    3,451.28x = 5,195.74 × 3,145.12
  4. Step 4: Simplify right side
    3,451.28x = 16,341,225.79
  5. Step 5: Solve for x
    x = 16,341,225.79/3,451.28
  6. Step 6: Final answer
    x = 4,734.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.