Home / 7,422.42-11,137.77-3,959.58

Finding the Fourth Proportional to 7,422.42, 11,137.77 and 3,959.58

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Solution

The fourth proportional to 7,422.42, 11,137.77 and 3,959.58 is: 5,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.42 : 11,137.77 = 3,959.58 : x
  2. Step 2: Convert to fraction form
    7,422.42/11,137.77 = 3,959.58/x
  3. Step 3: Cross multiply
    7,422.42x = 11,137.77 × 3,959.58
  4. Step 4: Simplify right side
    7,422.42x = 44,100,891.34
  5. Step 5: Solve for x
    x = 44,100,891.34/7,422.42
  6. Step 6: Final answer
    x = 5,941.58

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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.