Home / 3,192.14-4,391.52-3,118.40

Finding the Fourth Proportional to 3,192.14, 4,391.52 and 3,118.40

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Solution

The fourth proportional to 3,192.14, 4,391.52 and 3,118.40 is: 4,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.14 : 4,391.52 = 3,118.40 : x
  2. Step 2: Convert to fraction form
    3,192.14/4,391.52 = 3,118.40/x
  3. Step 3: Cross multiply
    3,192.14x = 4,391.52 × 3,118.40
  4. Step 4: Simplify right side
    3,192.14x = 13,694,515.97
  5. Step 5: Solve for x
    x = 13,694,515.97/3,192.14
  6. Step 6: Final answer
    x = 4,290.07

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1.5x scale

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.