Home / 3,480.20-5,211.06-2,722.15

Finding the Fourth Proportional to 3,480.20, 5,211.06 and 2,722.15

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Solution

The fourth proportional to 3,480.20, 5,211.06 and 2,722.15 is: 4,076.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.20 : 5,211.06 = 2,722.15 : x
  2. Step 2: Convert to fraction form
    3,480.20/5,211.06 = 2,722.15/x
  3. Step 3: Cross multiply
    3,480.20x = 5,211.06 × 2,722.15
  4. Step 4: Simplify right side
    3,480.20x = 14,185,263.74
  5. Step 5: Solve for x
    x = 14,185,263.74/3,480.20
  6. Step 6: Final answer
    x = 4,076.00

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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.