Home / 3,450.68-5,176.76-1,142.36

Finding the Fourth Proportional to 3,450.68, 5,176.76 and 1,142.36

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Solution

The fourth proportional to 3,450.68, 5,176.76 and 1,142.36 is: 1,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.68 : 5,176.76 = 1,142.36 : x
  2. Step 2: Convert to fraction form
    3,450.68/5,176.76 = 1,142.36/x
  3. Step 3: Cross multiply
    3,450.68x = 5,176.76 × 1,142.36
  4. Step 4: Simplify right side
    3,450.68x = 5,913,723.55
  5. Step 5: Solve for x
    x = 5,913,723.55/3,450.68
  6. Step 6: Final answer
    x = 1,713.78

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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.