Home / 2,871.22-4,310.82-1,485.58

Finding the Fourth Proportional to 2,871.22, 4,310.82 and 1,485.58

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Solution

The fourth proportional to 2,871.22, 4,310.82 and 1,485.58 is: 2,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.22 : 4,310.82 = 1,485.58 : x
  2. Step 2: Convert to fraction form
    2,871.22/4,310.82 = 1,485.58/x
  3. Step 3: Cross multiply
    2,871.22x = 4,310.82 × 1,485.58
  4. Step 4: Simplify right side
    2,871.22x = 6,404,067.98
  5. Step 5: Solve for x
    x = 6,404,067.98/2,871.22
  6. Step 6: Final answer
    x = 2,230.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.