Home / 3,578.42-5,367.64-1,112.88

Finding the Fourth Proportional to 3,578.42, 5,367.64 and 1,112.88

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Solution

The fourth proportional to 3,578.42, 5,367.64 and 1,112.88 is: 1,669.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.42 : 5,367.64 = 1,112.88 : x
  2. Step 2: Convert to fraction form
    3,578.42/5,367.64 = 1,112.88/x
  3. Step 3: Cross multiply
    3,578.42x = 5,367.64 × 1,112.88
  4. Step 4: Simplify right side
    3,578.42x = 5,973,539.20
  5. Step 5: Solve for x
    x = 5,973,539.20/3,578.42
  6. Step 6: Final answer
    x = 1,669.32

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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.