Home / 3,742.75-5,614.13-1,145.62

Finding the Fourth Proportional to 3,742.75, 5,614.13 and 1,145.62

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Solution

The fourth proportional to 3,742.75, 5,614.13 and 1,145.62 is: 1,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.75 : 5,614.13 = 1,145.62 : x
  2. Step 2: Convert to fraction form
    3,742.75/5,614.13 = 1,145.62/x
  3. Step 3: Cross multiply
    3,742.75x = 5,614.13 × 1,145.62
  4. Step 4: Simplify right side
    3,742.75x = 6,431,659.61
  5. Step 5: Solve for x
    x = 6,431,659.61/3,742.75
  6. Step 6: Final answer
    x = 1,718.43

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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.