Home / 3,953.39-5,455.68-2,381.79

Finding the Fourth Proportional to 3,953.39, 5,455.68 and 2,381.79

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Solution

The fourth proportional to 3,953.39, 5,455.68 and 2,381.79 is: 3,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.39 : 5,455.68 = 2,381.79 : x
  2. Step 2: Convert to fraction form
    3,953.39/5,455.68 = 2,381.79/x
  3. Step 3: Cross multiply
    3,953.39x = 5,455.68 × 2,381.79
  4. Step 4: Simplify right side
    3,953.39x = 12,994,271.60
  5. Step 5: Solve for x
    x = 12,994,271.60/3,953.39
  6. Step 6: Final answer
    x = 3,286.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.