Home / 3,780.70-5,658.90-2,021.29

Finding the Fourth Proportional to 3,780.70, 5,658.90 and 2,021.29

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Solution

The fourth proportional to 3,780.70, 5,658.90 and 2,021.29 is: 3,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.70 : 5,658.90 = 2,021.29 : x
  2. Step 2: Convert to fraction form
    3,780.70/5,658.90 = 2,021.29/x
  3. Step 3: Cross multiply
    3,780.70x = 5,658.90 × 2,021.29
  4. Step 4: Simplify right side
    3,780.70x = 11,438,249.69
  5. Step 5: Solve for x
    x = 11,438,249.69/3,780.70
  6. Step 6: Final answer
    x = 3,025.44

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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.