Home / 2,170.52-3,000.36-1,936.78

Finding the Fourth Proportional to 2,170.52, 3,000.36 and 1,936.78

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Solution

The fourth proportional to 2,170.52, 3,000.36 and 1,936.78 is: 2,677.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.52 : 3,000.36 = 1,936.78 : x
  2. Step 2: Convert to fraction form
    2,170.52/3,000.36 = 1,936.78/x
  3. Step 3: Cross multiply
    2,170.52x = 3,000.36 × 1,936.78
  4. Step 4: Simplify right side
    2,170.52x = 5,811,027.56
  5. Step 5: Solve for x
    x = 5,811,027.56/2,170.52
  6. Step 6: Final answer
    x = 2,677.25

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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.