Home / 3,982.61-5,972.43-1,170.60

Finding the Fourth Proportional to 3,982.61, 5,972.43 and 1,170.60

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Solution

The fourth proportional to 3,982.61, 5,972.43 and 1,170.60 is: 1,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.61 : 5,972.43 = 1,170.60 : x
  2. Step 2: Convert to fraction form
    3,982.61/5,972.43 = 1,170.60/x
  3. Step 3: Cross multiply
    3,982.61x = 5,972.43 × 1,170.60
  4. Step 4: Simplify right side
    3,982.61x = 6,991,290.84
  5. Step 5: Solve for x
    x = 6,991,290.84/3,982.61
  6. Step 6: Final answer
    x = 1,755.45

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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.