Home / 2,725.70-4,087.41-1,492.78

Finding the Fourth Proportional to 2,725.70, 4,087.41 and 1,492.78

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Solution

The fourth proportional to 2,725.70, 4,087.41 and 1,492.78 is: 2,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.70 : 4,087.41 = 1,492.78 : x
  2. Step 2: Convert to fraction form
    2,725.70/4,087.41 = 1,492.78/x
  3. Step 3: Cross multiply
    2,725.70x = 4,087.41 × 1,492.78
  4. Step 4: Simplify right side
    2,725.70x = 6,101,604.14
  5. Step 5: Solve for x
    x = 6,101,604.14/2,725.70
  6. Step 6: Final answer
    x = 2,238.55

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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.