Home / 3,192.20-4,788.14-1,111.56

Finding the Fourth Proportional to 3,192.20, 4,788.14 and 1,111.56

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Solution

The fourth proportional to 3,192.20, 4,788.14 and 1,111.56 is: 1,667.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.20 : 4,788.14 = 1,111.56 : x
  2. Step 2: Convert to fraction form
    3,192.20/4,788.14 = 1,111.56/x
  3. Step 3: Cross multiply
    3,192.20x = 4,788.14 × 1,111.56
  4. Step 4: Simplify right side
    3,192.20x = 5,322,304.90
  5. Step 5: Solve for x
    x = 5,322,304.90/3,192.20
  6. Step 6: Final answer
    x = 1,667.28

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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.