Home / 3,423.37-4,719.97-2,857.02

Finding the Fourth Proportional to 3,423.37, 4,719.97 and 2,857.02

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Solution

The fourth proportional to 3,423.37, 4,719.97 and 2,857.02 is: 3,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.37 : 4,719.97 = 2,857.02 : x
  2. Step 2: Convert to fraction form
    3,423.37/4,719.97 = 2,857.02/x
  3. Step 3: Cross multiply
    3,423.37x = 4,719.97 × 2,857.02
  4. Step 4: Simplify right side
    3,423.37x = 13,485,034.40
  5. Step 5: Solve for x
    x = 13,485,034.40/3,423.37
  6. Step 6: Final answer
    x = 3,939.12

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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.