Home / 1,273.24-1,911.40-1,208.66

Finding the Fourth Proportional to 1,273.24, 1,911.40 and 1,208.66

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Solution

The fourth proportional to 1,273.24, 1,911.40 and 1,208.66 is: 1,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.24 : 1,911.40 = 1,208.66 : x
  2. Step 2: Convert to fraction form
    1,273.24/1,911.40 = 1,208.66/x
  3. Step 3: Cross multiply
    1,273.24x = 1,911.40 × 1,208.66
  4. Step 4: Simplify right side
    1,273.24x = 2,310,235.86
  5. Step 5: Solve for x
    x = 2,310,235.86/1,273.24
  6. Step 6: Final answer
    x = 1,814.45

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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.