Home / 2,170.18-3,255.66-1,071.82

Finding the Fourth Proportional to 2,170.18, 3,255.66 and 1,071.82

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Solution

The fourth proportional to 2,170.18, 3,255.66 and 1,071.82 is: 1,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.18 : 3,255.66 = 1,071.82 : x
  2. Step 2: Convert to fraction form
    2,170.18/3,255.66 = 1,071.82/x
  3. Step 3: Cross multiply
    2,170.18x = 3,255.66 × 1,071.82
  4. Step 4: Simplify right side
    2,170.18x = 3,489,481.50
  5. Step 5: Solve for x
    x = 3,489,481.50/2,170.18
  6. Step 6: Final answer
    x = 1,607.92

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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.