Home / 3,191.36-4,781.12-2,674.66

Finding the Fourth Proportional to 3,191.36, 4,781.12 and 2,674.66

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Solution

The fourth proportional to 3,191.36, 4,781.12 and 2,674.66 is: 4,007.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.36 : 4,781.12 = 2,674.66 : x
  2. Step 2: Convert to fraction form
    3,191.36/4,781.12 = 2,674.66/x
  3. Step 3: Cross multiply
    3,191.36x = 4,781.12 × 2,674.66
  4. Step 4: Simplify right side
    3,191.36x = 12,787,870.42
  5. Step 5: Solve for x
    x = 12,787,870.42/3,191.36
  6. Step 6: Final answer
    x = 4,007.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.