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Finding the Fourth Proportional to 2,512.56, 3,467.48 and 1,393.64

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Solution

The fourth proportional to 2,512.56, 3,467.48 and 1,393.64 is: 1,923.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.56 : 3,467.48 = 1,393.64 : x
  2. Step 2: Convert to fraction form
    2,512.56/3,467.48 = 1,393.64/x
  3. Step 3: Cross multiply
    2,512.56x = 3,467.48 × 1,393.64
  4. Step 4: Simplify right side
    2,512.56x = 4,832,418.83
  5. Step 5: Solve for x
    x = 4,832,418.83/2,512.56
  6. Step 6: Final answer
    x = 1,923.30

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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.