Home / 3,142.24-4,329.16-2,431.64

Finding the Fourth Proportional to 3,142.24, 4,329.16 and 2,431.64

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Solution

The fourth proportional to 3,142.24, 4,329.16 and 2,431.64 is: 3,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.24 : 4,329.16 = 2,431.64 : x
  2. Step 2: Convert to fraction form
    3,142.24/4,329.16 = 2,431.64/x
  3. Step 3: Cross multiply
    3,142.24x = 4,329.16 × 2,431.64
  4. Step 4: Simplify right side
    3,142.24x = 10,526,958.62
  5. Step 5: Solve for x
    x = 10,526,958.62/3,142.24
  6. Step 6: Final answer
    x = 3,350.14

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1.5x scale

Why These Related Problems?

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