Home / 2,212.76-3,317.34-1,663.88

Finding the Fourth Proportional to 2,212.76, 3,317.34 and 1,663.88

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Solution

The fourth proportional to 2,212.76, 3,317.34 and 1,663.88 is: 2,494.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.76 : 3,317.34 = 1,663.88 : x
  2. Step 2: Convert to fraction form
    2,212.76/3,317.34 = 1,663.88/x
  3. Step 3: Cross multiply
    2,212.76x = 3,317.34 × 1,663.88
  4. Step 4: Simplify right side
    2,212.76x = 5,519,655.68
  5. Step 5: Solve for x
    x = 5,519,655.68/2,212.76
  6. Step 6: Final answer
    x = 2,494.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.