Home / 3,780.20-5,658.15-2,020.79

Finding the Fourth Proportional to 3,780.20, 5,658.15 and 2,020.79

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Solution

The fourth proportional to 3,780.20, 5,658.15 and 2,020.79 is: 3,024.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.20 : 5,658.15 = 2,020.79 : x
  2. Step 2: Convert to fraction form
    3,780.20/5,658.15 = 2,020.79/x
  3. Step 3: Cross multiply
    3,780.20x = 5,658.15 × 2,020.79
  4. Step 4: Simplify right side
    3,780.20x = 11,433,904.65
  5. Step 5: Solve for x
    x = 11,433,904.65/3,780.20
  6. Step 6: Final answer
    x = 3,024.69

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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.