Home / 3,270.33-4,902.73-1,420.05

Finding the Fourth Proportional to 3,270.33, 4,902.73 and 1,420.05

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Solution

The fourth proportional to 3,270.33, 4,902.73 and 1,420.05 is: 2,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.33 : 4,902.73 = 1,420.05 : x
  2. Step 2: Convert to fraction form
    3,270.33/4,902.73 = 1,420.05/x
  3. Step 3: Cross multiply
    3,270.33x = 4,902.73 × 1,420.05
  4. Step 4: Simplify right side
    3,270.33x = 6,962,097.22
  5. Step 5: Solve for x
    x = 6,962,097.22/3,270.33
  6. Step 6: Final answer
    x = 2,128.87

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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.