Home / 3,660.63-5,489.85-2,611.89

Finding the Fourth Proportional to 3,660.63, 5,489.85 and 2,611.89

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Solution

The fourth proportional to 3,660.63, 5,489.85 and 2,611.89 is: 3,917.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.63 : 5,489.85 = 2,611.89 : x
  2. Step 2: Convert to fraction form
    3,660.63/5,489.85 = 2,611.89/x
  3. Step 3: Cross multiply
    3,660.63x = 5,489.85 × 2,611.89
  4. Step 4: Simplify right side
    3,660.63x = 14,338,884.32
  5. Step 5: Solve for x
    x = 14,338,884.32/3,660.63
  6. Step 6: Final answer
    x = 3,917.05

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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.