Home / 2,137.44-3,201.60-1,315.92

Finding the Fourth Proportional to 2,137.44, 3,201.60 and 1,315.92

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Solution

The fourth proportional to 2,137.44, 3,201.60 and 1,315.92 is: 1,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.44 : 3,201.60 = 1,315.92 : x
  2. Step 2: Convert to fraction form
    2,137.44/3,201.60 = 1,315.92/x
  3. Step 3: Cross multiply
    2,137.44x = 3,201.60 × 1,315.92
  4. Step 4: Simplify right side
    2,137.44x = 4,213,049.47
  5. Step 5: Solve for x
    x = 4,213,049.47/2,137.44
  6. Step 6: Final answer
    x = 1,971.07

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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.