Home / 5,418.28-8,124.58-1,907.61

Finding the Fourth Proportional to 5,418.28, 8,124.58 and 1,907.61

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Solution

The fourth proportional to 5,418.28, 8,124.58 and 1,907.61 is: 2,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.28 : 8,124.58 = 1,907.61 : x
  2. Step 2: Convert to fraction form
    5,418.28/8,124.58 = 1,907.61/x
  3. Step 3: Cross multiply
    5,418.28x = 8,124.58 × 1,907.61
  4. Step 4: Simplify right side
    5,418.28x = 15,498,530.05
  5. Step 5: Solve for x
    x = 15,498,530.05/5,418.28
  6. Step 6: Final answer
    x = 2,860.42

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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.