Home / 3,278.23-4,914.60-1,331.80

Finding the Fourth Proportional to 3,278.23, 4,914.60 and 1,331.80

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Solution

The fourth proportional to 3,278.23, 4,914.60 and 1,331.80 is: 1,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.23 : 4,914.60 = 1,331.80 : x
  2. Step 2: Convert to fraction form
    3,278.23/4,914.60 = 1,331.80/x
  3. Step 3: Cross multiply
    3,278.23x = 4,914.60 × 1,331.80
  4. Step 4: Simplify right side
    3,278.23x = 6,545,264.28
  5. Step 5: Solve for x
    x = 6,545,264.28/3,278.23
  6. Step 6: Final answer
    x = 1,996.58

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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.