Home / 2,171.05-2,990.66-2,059.88

Finding the Fourth Proportional to 2,171.05, 2,990.66 and 2,059.88

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Solution

The fourth proportional to 2,171.05, 2,990.66 and 2,059.88 is: 2,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.05 : 2,990.66 = 2,059.88 : x
  2. Step 2: Convert to fraction form
    2,171.05/2,990.66 = 2,059.88/x
  3. Step 3: Cross multiply
    2,171.05x = 2,990.66 × 2,059.88
  4. Step 4: Simplify right side
    2,171.05x = 6,160,375.47
  5. Step 5: Solve for x
    x = 6,160,375.47/2,171.05
  6. Step 6: Final answer
    x = 2,837.51

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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.