Home / 2,134.90-3,201.75-1,039.30

Finding the Fourth Proportional to 2,134.90, 3,201.75 and 1,039.30

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Solution

The fourth proportional to 2,134.90, 3,201.75 and 1,039.30 is: 1,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.90 : 3,201.75 = 1,039.30 : x
  2. Step 2: Convert to fraction form
    2,134.90/3,201.75 = 1,039.30/x
  3. Step 3: Cross multiply
    2,134.90x = 3,201.75 × 1,039.30
  4. Step 4: Simplify right side
    2,134.90x = 3,327,578.78
  5. Step 5: Solve for x
    x = 3,327,578.78/2,134.90
  6. Step 6: Final answer
    x = 1,558.66

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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.