Home / 3,138.60-4,331.26-1,741.36

Finding the Fourth Proportional to 3,138.60, 4,331.26 and 1,741.36

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Solution

The fourth proportional to 3,138.60, 4,331.26 and 1,741.36 is: 2,403.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.60 : 4,331.26 = 1,741.36 : x
  2. Step 2: Convert to fraction form
    3,138.60/4,331.26 = 1,741.36/x
  3. Step 3: Cross multiply
    3,138.60x = 4,331.26 × 1,741.36
  4. Step 4: Simplify right side
    3,138.60x = 7,542,282.91
  5. Step 5: Solve for x
    x = 7,542,282.91/3,138.60
  6. Step 6: Final answer
    x = 2,403.07

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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.