Home / 3,759.59-5,639.27-1,786.64

Finding the Fourth Proportional to 3,759.59, 5,639.27 and 1,786.64

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Solution

The fourth proportional to 3,759.59, 5,639.27 and 1,786.64 is: 2,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.59 : 5,639.27 = 1,786.64 : x
  2. Step 2: Convert to fraction form
    3,759.59/5,639.27 = 1,786.64/x
  3. Step 3: Cross multiply
    3,759.59x = 5,639.27 × 1,786.64
  4. Step 4: Simplify right side
    3,759.59x = 10,075,308.22
  5. Step 5: Solve for x
    x = 10,075,308.22/3,759.59
  6. Step 6: Final answer
    x = 2,679.90

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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.