Home / 3,742.70-5,614.05-1,145.30

Finding the Fourth Proportional to 3,742.70, 5,614.05 and 1,145.30

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Solution

The fourth proportional to 3,742.70, 5,614.05 and 1,145.30 is: 1,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.70 : 5,614.05 = 1,145.30 : x
  2. Step 2: Convert to fraction form
    3,742.70/5,614.05 = 1,145.30/x
  3. Step 3: Cross multiply
    3,742.70x = 5,614.05 × 1,145.30
  4. Step 4: Simplify right side
    3,742.70x = 6,429,771.47
  5. Step 5: Solve for x
    x = 6,429,771.47/3,742.70
  6. Step 6: Final answer
    x = 1,717.95

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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.