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Finding the Fourth Proportional to 3,135.69, 4,327.38 and 1,738.44

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Solution

The fourth proportional to 3,135.69, 4,327.38 and 1,738.44 is: 2,399.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.69 : 4,327.38 = 1,738.44 : x
  2. Step 2: Convert to fraction form
    3,135.69/4,327.38 = 1,738.44/x
  3. Step 3: Cross multiply
    3,135.69x = 4,327.38 × 1,738.44
  4. Step 4: Simplify right side
    3,135.69x = 7,522,890.49
  5. Step 5: Solve for x
    x = 7,522,890.49/3,135.69
  6. Step 6: Final answer
    x = 2,399.12

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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.