Home / 1,906.48-2,630.79-1,067.21

Finding the Fourth Proportional to 1,906.48, 2,630.79 and 1,067.21

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Solution

The fourth proportional to 1,906.48, 2,630.79 and 1,067.21 is: 1,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.48 : 2,630.79 = 1,067.21 : x
  2. Step 2: Convert to fraction form
    1,906.48/2,630.79 = 1,067.21/x
  3. Step 3: Cross multiply
    1,906.48x = 2,630.79 × 1,067.21
  4. Step 4: Simplify right side
    1,906.48x = 2,807,605.40
  5. Step 5: Solve for x
    x = 2,807,605.40/1,906.48
  6. Step 6: Final answer
    x = 1,472.66

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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.