Home / 3,686.88-5,530.59-1,836.09

Finding the Fourth Proportional to 3,686.88, 5,530.59 and 1,836.09

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Solution

The fourth proportional to 3,686.88, 5,530.59 and 1,836.09 is: 2,754.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.88 : 5,530.59 = 1,836.09 : x
  2. Step 2: Convert to fraction form
    3,686.88/5,530.59 = 1,836.09/x
  3. Step 3: Cross multiply
    3,686.88x = 5,530.59 × 1,836.09
  4. Step 4: Simplify right side
    3,686.88x = 10,154,660.99
  5. Step 5: Solve for x
    x = 10,154,660.99/3,686.88
  6. Step 6: Final answer
    x = 2,754.27

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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.