Home / 2,500.79-3,450.92-1,381.73

Finding the Fourth Proportional to 2,500.79, 3,450.92 and 1,381.73

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Solution

The fourth proportional to 2,500.79, 3,450.92 and 1,381.73 is: 1,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.79 : 3,450.92 = 1,381.73 : x
  2. Step 2: Convert to fraction form
    2,500.79/3,450.92 = 1,381.73/x
  3. Step 3: Cross multiply
    2,500.79x = 3,450.92 × 1,381.73
  4. Step 4: Simplify right side
    2,500.79x = 4,768,215.53
  5. Step 5: Solve for x
    x = 4,768,215.53/2,500.79
  6. Step 6: Final answer
    x = 1,906.69

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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.