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Finding the Fourth Proportional to 2,443.88, 3,372.90 and 1,512.68

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Solution

The fourth proportional to 2,443.88, 3,372.90 and 1,512.68 is: 2,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,443.88 : 3,372.90 = 1,512.68 : x
  2. Step 2: Convert to fraction form
    2,443.88/3,372.90 = 1,512.68/x
  3. Step 3: Cross multiply
    2,443.88x = 3,372.90 × 1,512.68
  4. Step 4: Simplify right side
    2,443.88x = 5,102,118.37
  5. Step 5: Solve for x
    x = 5,102,118.37/2,443.88
  6. Step 6: Final answer
    x = 2,087.71

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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.