Home / 2,500.12-3,450.14-1,380.97

Finding the Fourth Proportional to 2,500.12, 3,450.14 and 1,380.97

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Solution

The fourth proportional to 2,500.12, 3,450.14 and 1,380.97 is: 1,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.12 : 3,450.14 = 1,380.97 : x
  2. Step 2: Convert to fraction form
    2,500.12/3,450.14 = 1,380.97/x
  3. Step 3: Cross multiply
    2,500.12x = 3,450.14 × 1,380.97
  4. Step 4: Simplify right side
    2,500.12x = 4,764,522.59
  5. Step 5: Solve for x
    x = 4,764,522.59/2,500.12
  6. Step 6: Final answer
    x = 1,905.72

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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.