Home / 2,166.90-3,243.97-1,342.52

Finding the Fourth Proportional to 2,166.90, 3,243.97 and 1,342.52

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Solution

The fourth proportional to 2,166.90, 3,243.97 and 1,342.52 is: 2,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.90 : 3,243.97 = 1,342.52 : x
  2. Step 2: Convert to fraction form
    2,166.90/3,243.97 = 1,342.52/x
  3. Step 3: Cross multiply
    2,166.90x = 3,243.97 × 1,342.52
  4. Step 4: Simplify right side
    2,166.90x = 4,355,099.36
  5. Step 5: Solve for x
    x = 4,355,099.36/2,166.90
  6. Step 6: Final answer
    x = 2,009.83

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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.