Home / 4,855.79-7,286.13-2,081.70

Finding the Fourth Proportional to 4,855.79, 7,286.13 and 2,081.70

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Solution

The fourth proportional to 4,855.79, 7,286.13 and 2,081.70 is: 3,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.79 : 7,286.13 = 2,081.70 : x
  2. Step 2: Convert to fraction form
    4,855.79/7,286.13 = 2,081.70/x
  3. Step 3: Cross multiply
    4,855.79x = 7,286.13 × 2,081.70
  4. Step 4: Simplify right side
    4,855.79x = 15,167,536.82
  5. Step 5: Solve for x
    x = 15,167,536.82/4,855.79
  6. Step 6: Final answer
    x = 3,123.60

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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.