Home / 3,742.40-5,614.14-1,145.54

Finding the Fourth Proportional to 3,742.40, 5,614.14 and 1,145.54

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Solution

The fourth proportional to 3,742.40, 5,614.14 and 1,145.54 is: 1,718.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.40 : 5,614.14 = 1,145.54 : x
  2. Step 2: Convert to fraction form
    3,742.40/5,614.14 = 1,145.54/x
  3. Step 3: Cross multiply
    3,742.40x = 5,614.14 × 1,145.54
  4. Step 4: Simplify right side
    3,742.40x = 6,431,221.94
  5. Step 5: Solve for x
    x = 6,431,221.94/3,742.40
  6. Step 6: Final answer
    x = 1,718.48

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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.