Home / 1,906.45-2,630.95-1,067.15

Finding the Fourth Proportional to 1,906.45, 2,630.95 and 1,067.15

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Solution

The fourth proportional to 1,906.45, 2,630.95 and 1,067.15 is: 1,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.45 : 2,630.95 = 1,067.15 : x
  2. Step 2: Convert to fraction form
    1,906.45/2,630.95 = 1,067.15/x
  3. Step 3: Cross multiply
    1,906.45x = 2,630.95 × 1,067.15
  4. Step 4: Simplify right side
    1,906.45x = 2,807,607.40
  5. Step 5: Solve for x
    x = 2,807,607.40/1,906.45
  6. Step 6: Final answer
    x = 1,472.69

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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.