Home / 2,512.80-3,467.41-1,393.45

Finding the Fourth Proportional to 2,512.80, 3,467.41 and 1,393.45

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Solution

The fourth proportional to 2,512.80, 3,467.41 and 1,393.45 is: 1,922.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.80 : 3,467.41 = 1,393.45 : x
  2. Step 2: Convert to fraction form
    2,512.80/3,467.41 = 1,393.45/x
  3. Step 3: Cross multiply
    2,512.80x = 3,467.41 × 1,393.45
  4. Step 4: Simplify right side
    2,512.80x = 4,831,650.31
  5. Step 5: Solve for x
    x = 4,831,650.31/2,512.80
  6. Step 6: Final answer
    x = 1,922.82

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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.