Home / 2,625.39-3,620.79-1,871.73

Finding the Fourth Proportional to 2,625.39, 3,620.79 and 1,871.73

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Solution

The fourth proportional to 2,625.39, 3,620.79 and 1,871.73 is: 2,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.39 : 3,620.79 = 1,871.73 : x
  2. Step 2: Convert to fraction form
    2,625.39/3,620.79 = 1,871.73/x
  3. Step 3: Cross multiply
    2,625.39x = 3,620.79 × 1,871.73
  4. Step 4: Simplify right side
    2,625.39x = 6,777,141.27
  5. Step 5: Solve for x
    x = 6,777,141.27/2,625.39
  6. Step 6: Final answer
    x = 2,581.38

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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.