Home / 1,928.86-2,893.29-1,107.66

Finding the Fourth Proportional to 1,928.86, 2,893.29 and 1,107.66

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Solution

The fourth proportional to 1,928.86, 2,893.29 and 1,107.66 is: 1,661.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.86 : 2,893.29 = 1,107.66 : x
  2. Step 2: Convert to fraction form
    1,928.86/2,893.29 = 1,107.66/x
  3. Step 3: Cross multiply
    1,928.86x = 2,893.29 × 1,107.66
  4. Step 4: Simplify right side
    1,928.86x = 3,204,781.60
  5. Step 5: Solve for x
    x = 3,204,781.60/1,928.86
  6. Step 6: Final answer
    x = 1,661.49

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1.5x scale

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.