Home / 4,170.36-5,755.56-3,120.60

Finding the Fourth Proportional to 4,170.36, 5,755.56 and 3,120.60

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Solution

The fourth proportional to 4,170.36, 5,755.56 and 3,120.60 is: 4,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.36 : 5,755.56 = 3,120.60 : x
  2. Step 2: Convert to fraction form
    4,170.36/5,755.56 = 3,120.60/x
  3. Step 3: Cross multiply
    4,170.36x = 5,755.56 × 3,120.60
  4. Step 4: Simplify right side
    4,170.36x = 17,960,800.54
  5. Step 5: Solve for x
    x = 17,960,800.54/4,170.36
  6. Step 6: Final answer
    x = 4,306.77

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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.