Home / 3,756.21-5,634.42-1,290.99

Finding the Fourth Proportional to 3,756.21, 5,634.42 and 1,290.99

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Solution

The fourth proportional to 3,756.21, 5,634.42 and 1,290.99 is: 1,936.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.21 : 5,634.42 = 1,290.99 : x
  2. Step 2: Convert to fraction form
    3,756.21/5,634.42 = 1,290.99/x
  3. Step 3: Cross multiply
    3,756.21x = 5,634.42 × 1,290.99
  4. Step 4: Simplify right side
    3,756.21x = 7,273,979.88
  5. Step 5: Solve for x
    x = 7,273,979.88/3,756.21
  6. Step 6: Final answer
    x = 1,936.52

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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.