Home / 3,187.83-4,781.48-1,107.30

Finding the Fourth Proportional to 3,187.83, 4,781.48 and 1,107.30

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Solution

The fourth proportional to 3,187.83, 4,781.48 and 1,107.30 is: 1,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.83 : 4,781.48 = 1,107.30 : x
  2. Step 2: Convert to fraction form
    3,187.83/4,781.48 = 1,107.30/x
  3. Step 3: Cross multiply
    3,187.83x = 4,781.48 × 1,107.30
  4. Step 4: Simplify right side
    3,187.83x = 5,294,527.27
  5. Step 5: Solve for x
    x = 5,294,527.27/3,187.83
  6. Step 6: Final answer
    x = 1,660.86

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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.