Home / 3,651.89-5,042.03-2,160.28

Finding the Fourth Proportional to 3,651.89, 5,042.03 and 2,160.28

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Solution

The fourth proportional to 3,651.89, 5,042.03 and 2,160.28 is: 2,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.89 : 5,042.03 = 2,160.28 : x
  2. Step 2: Convert to fraction form
    3,651.89/5,042.03 = 2,160.28/x
  3. Step 3: Cross multiply
    3,651.89x = 5,042.03 × 2,160.28
  4. Step 4: Simplify right side
    3,651.89x = 10,892,201.97
  5. Step 5: Solve for x
    x = 10,892,201.97/3,651.89
  6. Step 6: Final answer
    x = 2,982.62

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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.