Home / 3,189.24-4,388.85-2,943

Finding the Fourth Proportional to 3,189.24, 4,388.85 and 2,943

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Solution

The fourth proportional to 3,189.24, 4,388.85 and 2,943 is: 4,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.24 : 4,388.85 = 2,943 : x
  2. Step 2: Convert to fraction form
    3,189.24/4,388.85 = 2,943/x
  3. Step 3: Cross multiply
    3,189.24x = 4,388.85 × 2,943
  4. Step 4: Simplify right side
    3,189.24x = 12,916,385.55
  5. Step 5: Solve for x
    x = 12,916,385.55/3,189.24
  6. Step 6: Final answer
    x = 4,049.99

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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.