Home / 3,742.80-5,614.80-1,145.13

Finding the Fourth Proportional to 3,742.80, 5,614.80 and 1,145.13

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Solution

The fourth proportional to 3,742.80, 5,614.80 and 1,145.13 is: 1,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.80 : 5,614.80 = 1,145.13 : x
  2. Step 2: Convert to fraction form
    3,742.80/5,614.80 = 1,145.13/x
  3. Step 3: Cross multiply
    3,742.80x = 5,614.80 × 1,145.13
  4. Step 4: Simplify right side
    3,742.80x = 6,429,675.92
  5. Step 5: Solve for x
    x = 6,429,675.92/3,742.80
  6. Step 6: Final answer
    x = 1,717.88

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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.