Home / 3,857.23-5,780.49-2,097.91

Finding the Fourth Proportional to 3,857.23, 5,780.49 and 2,097.91

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Solution

The fourth proportional to 3,857.23, 5,780.49 and 2,097.91 is: 3,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.23 : 5,780.49 = 2,097.91 : x
  2. Step 2: Convert to fraction form
    3,857.23/5,780.49 = 2,097.91/x
  3. Step 3: Cross multiply
    3,857.23x = 5,780.49 × 2,097.91
  4. Step 4: Simplify right side
    3,857.23x = 12,126,947.78
  5. Step 5: Solve for x
    x = 12,126,947.78/3,857.23
  6. Step 6: Final answer
    x = 3,143.95

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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.