Home / 5,120.58-7,065.87-2,882.55

Finding the Fourth Proportional to 5,120.58, 7,065.87 and 2,882.55

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Solution

The fourth proportional to 5,120.58, 7,065.87 and 2,882.55 is: 3,977.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.58 : 7,065.87 = 2,882.55 : x
  2. Step 2: Convert to fraction form
    5,120.58/7,065.87 = 2,882.55/x
  3. Step 3: Cross multiply
    5,120.58x = 7,065.87 × 2,882.55
  4. Step 4: Simplify right side
    5,120.58x = 20,367,723.57
  5. Step 5: Solve for x
    x = 20,367,723.57/5,120.58
  6. Step 6: Final answer
    x = 3,977.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.