Home / 3,147.11-4,719.30-1,586.15

Finding the Fourth Proportional to 3,147.11, 4,719.30 and 1,586.15

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Solution

The fourth proportional to 3,147.11, 4,719.30 and 1,586.15 is: 2,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.11 : 4,719.30 = 1,586.15 : x
  2. Step 2: Convert to fraction form
    3,147.11/4,719.30 = 1,586.15/x
  3. Step 3: Cross multiply
    3,147.11x = 4,719.30 × 1,586.15
  4. Step 4: Simplify right side
    3,147.11x = 7,485,517.70
  5. Step 5: Solve for x
    x = 7,485,517.70/3,147.11
  6. Step 6: Final answer
    x = 2,378.54

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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.