Home / 3,811.39-5,717.24-1,178.67

Finding the Fourth Proportional to 3,811.39, 5,717.24 and 1,178.67

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Solution

The fourth proportional to 3,811.39, 5,717.24 and 1,178.67 is: 1,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.39 : 5,717.24 = 1,178.67 : x
  2. Step 2: Convert to fraction form
    3,811.39/5,717.24 = 1,178.67/x
  3. Step 3: Cross multiply
    3,811.39x = 5,717.24 × 1,178.67
  4. Step 4: Simplify right side
    3,811.39x = 6,738,739.27
  5. Step 5: Solve for x
    x = 6,738,739.27/3,811.39
  6. Step 6: Final answer
    x = 1,768.05

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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.