Home / 3,211.77-4,425.33-2,162.01

Finding the Fourth Proportional to 3,211.77, 4,425.33 and 2,162.01

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Solution

The fourth proportional to 3,211.77, 4,425.33 and 2,162.01 is: 2,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.77 : 4,425.33 = 2,162.01 : x
  2. Step 2: Convert to fraction form
    3,211.77/4,425.33 = 2,162.01/x
  3. Step 3: Cross multiply
    3,211.77x = 4,425.33 × 2,162.01
  4. Step 4: Simplify right side
    3,211.77x = 9,567,618.78
  5. Step 5: Solve for x
    x = 9,567,618.78/3,211.77
  6. Step 6: Final answer
    x = 2,978.92

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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.