Home / 3,187.24-4,781.54-1,107.31

Finding the Fourth Proportional to 3,187.24, 4,781.54 and 1,107.31

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Solution

The fourth proportional to 3,187.24, 4,781.54 and 1,107.31 is: 1,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.24 : 4,781.54 = 1,107.31 : x
  2. Step 2: Convert to fraction form
    3,187.24/4,781.54 = 1,107.31/x
  3. Step 3: Cross multiply
    3,187.24x = 4,781.54 × 1,107.31
  4. Step 4: Simplify right side
    3,187.24x = 5,294,647.06
  5. Step 5: Solve for x
    x = 5,294,647.06/3,187.24
  6. Step 6: Final answer
    x = 1,661.20

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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.