Home / 1,273.12-1,899.27-1,237.84

Finding the Fourth Proportional to 1,273.12, 1,899.27 and 1,237.84

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Solution

The fourth proportional to 1,273.12, 1,899.27 and 1,237.84 is: 1,846.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.12 : 1,899.27 = 1,237.84 : x
  2. Step 2: Convert to fraction form
    1,273.12/1,899.27 = 1,237.84/x
  3. Step 3: Cross multiply
    1,273.12x = 1,899.27 × 1,237.84
  4. Step 4: Simplify right side
    1,273.12x = 2,350,992.38
  5. Step 5: Solve for x
    x = 2,350,992.38/1,273.12
  6. Step 6: Final answer
    x = 1,846.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.