Home / 3,639.88-5,458.94-1,691.08

Finding the Fourth Proportional to 3,639.88, 5,458.94 and 1,691.08

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Solution

The fourth proportional to 3,639.88, 5,458.94 and 1,691.08 is: 2,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.88 : 5,458.94 = 1,691.08 : x
  2. Step 2: Convert to fraction form
    3,639.88/5,458.94 = 1,691.08/x
  3. Step 3: Cross multiply
    3,639.88x = 5,458.94 × 1,691.08
  4. Step 4: Simplify right side
    3,639.88x = 9,231,504.26
  5. Step 5: Solve for x
    x = 9,231,504.26/3,639.88
  6. Step 6: Final answer
    x = 2,536.21

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1.5x scale

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.