Home / 3,377.20-5,055.90-2,405.20

Finding the Fourth Proportional to 3,377.20, 5,055.90 and 2,405.20

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Solution

The fourth proportional to 3,377.20, 5,055.90 and 2,405.20 is: 3,600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,377.20 : 5,055.90 = 2,405.20 : x
  2. Step 2: Convert to fraction form
    3,377.20/5,055.90 = 2,405.20/x
  3. Step 3: Cross multiply
    3,377.20x = 5,055.90 × 2,405.20
  4. Step 4: Simplify right side
    3,377.20x = 12,160,450.68
  5. Step 5: Solve for x
    x = 12,160,450.68/3,377.20
  6. Step 6: Final answer
    x = 3,600.75

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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.