Home / 3,147.16-4,719.12-2,161.48

Finding the Fourth Proportional to 3,147.16, 4,719.12 and 2,161.48

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Solution

The fourth proportional to 3,147.16, 4,719.12 and 2,161.48 is: 3,241.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.16 : 4,719.12 = 2,161.48 : x
  2. Step 2: Convert to fraction form
    3,147.16/4,719.12 = 2,161.48/x
  3. Step 3: Cross multiply
    3,147.16x = 4,719.12 × 2,161.48
  4. Step 4: Simplify right side
    3,147.16x = 10,200,283.50
  5. Step 5: Solve for x
    x = 10,200,283.50/3,147.16
  6. Step 6: Final answer
    x = 3,241.11

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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.