Home / 3,147.40-4,719.26-1,296.43

Finding the Fourth Proportional to 3,147.40, 4,719.26 and 1,296.43

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Solution

The fourth proportional to 3,147.40, 4,719.26 and 1,296.43 is: 1,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.40 : 4,719.26 = 1,296.43 : x
  2. Step 2: Convert to fraction form
    3,147.40/4,719.26 = 1,296.43/x
  3. Step 3: Cross multiply
    3,147.40x = 4,719.26 × 1,296.43
  4. Step 4: Simplify right side
    3,147.40x = 6,118,181.68
  5. Step 5: Solve for x
    x = 6,118,181.68/3,147.40
  6. Step 6: Final answer
    x = 1,943.88

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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.