Home / 1,420.73-1,960.97-1,273.10

Finding the Fourth Proportional to 1,420.73, 1,960.97 and 1,273.10

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Solution

The fourth proportional to 1,420.73, 1,960.97 and 1,273.10 is: 1,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420.73 : 1,960.97 = 1,273.10 : x
  2. Step 2: Convert to fraction form
    1,420.73/1,960.97 = 1,273.10/x
  3. Step 3: Cross multiply
    1,420.73x = 1,960.97 × 1,273.10
  4. Step 4: Simplify right side
    1,420.73x = 2,496,509.44
  5. Step 5: Solve for x
    x = 2,496,509.44/1,420.73
  6. Step 6: Final answer
    x = 1,757.21

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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.