Home / 3,138.64-4,331.46-1,741.39

Finding the Fourth Proportional to 3,138.64, 4,331.46 and 1,741.39

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Solution

The fourth proportional to 3,138.64, 4,331.46 and 1,741.39 is: 2,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.64 : 4,331.46 = 1,741.39 : x
  2. Step 2: Convert to fraction form
    3,138.64/4,331.46 = 1,741.39/x
  3. Step 3: Cross multiply
    3,138.64x = 4,331.46 × 1,741.39
  4. Step 4: Simplify right side
    3,138.64x = 7,542,761.13
  5. Step 5: Solve for x
    x = 7,542,761.13/3,138.64
  6. Step 6: Final answer
    x = 2,403.19

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1.5x scale

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.