Home / 2,520.67-3,780.83-1,133.65

Finding the Fourth Proportional to 2,520.67, 3,780.83 and 1,133.65

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Solution

The fourth proportional to 2,520.67, 3,780.83 and 1,133.65 is: 1,700.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.67 : 3,780.83 = 1,133.65 : x
  2. Step 2: Convert to fraction form
    2,520.67/3,780.83 = 1,133.65/x
  3. Step 3: Cross multiply
    2,520.67x = 3,780.83 × 1,133.65
  4. Step 4: Simplify right side
    2,520.67x = 4,286,117.85
  5. Step 5: Solve for x
    x = 4,286,117.85/2,520.67
  6. Step 6: Final answer
    x = 1,700.39

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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.