Home / 3,164.72-4,361.96-2,220.80

Finding the Fourth Proportional to 3,164.72, 4,361.96 and 2,220.80

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Solution

The fourth proportional to 3,164.72, 4,361.96 and 2,220.80 is: 3,060.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.72 : 4,361.96 = 2,220.80 : x
  2. Step 2: Convert to fraction form
    3,164.72/4,361.96 = 2,220.80/x
  3. Step 3: Cross multiply
    3,164.72x = 4,361.96 × 2,220.80
  4. Step 4: Simplify right side
    3,164.72x = 9,687,040.77
  5. Step 5: Solve for x
    x = 9,687,040.77/3,164.72
  6. Step 6: Final answer
    x = 3,060.95

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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.