Home / 3,789.45-5,682.35-1,324.22

Finding the Fourth Proportional to 3,789.45, 5,682.35 and 1,324.22

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Solution

The fourth proportional to 3,789.45, 5,682.35 and 1,324.22 is: 1,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.45 : 5,682.35 = 1,324.22 : x
  2. Step 2: Convert to fraction form
    3,789.45/5,682.35 = 1,324.22/x
  3. Step 3: Cross multiply
    3,789.45x = 5,682.35 × 1,324.22
  4. Step 4: Simplify right side
    3,789.45x = 7,524,656.42
  5. Step 5: Solve for x
    x = 7,524,656.42/3,789.45
  6. Step 6: Final answer
    x = 1,985.69

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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.