Home / 3,419.05-5,131.61-1,776.73

Finding the Fourth Proportional to 3,419.05, 5,131.61 and 1,776.73

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Solution

The fourth proportional to 3,419.05, 5,131.61 and 1,776.73 is: 2,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.05 : 5,131.61 = 1,776.73 : x
  2. Step 2: Convert to fraction form
    3,419.05/5,131.61 = 1,776.73/x
  3. Step 3: Cross multiply
    3,419.05x = 5,131.61 × 1,776.73
  4. Step 4: Simplify right side
    3,419.05x = 9,117,485.44
  5. Step 5: Solve for x
    x = 9,117,485.44/3,419.05
  6. Step 6: Final answer
    x = 2,666.67

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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.