Home / 3,740.20-5,610.30-1,274.80

Finding the Fourth Proportional to 3,740.20, 5,610.30 and 1,274.80

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Solution

The fourth proportional to 3,740.20, 5,610.30 and 1,274.80 is: 1,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.20 : 5,610.30 = 1,274.80 : x
  2. Step 2: Convert to fraction form
    3,740.20/5,610.30 = 1,274.80/x
  3. Step 3: Cross multiply
    3,740.20x = 5,610.30 × 1,274.80
  4. Step 4: Simplify right side
    3,740.20x = 7,152,010.44
  5. Step 5: Solve for x
    x = 7,152,010.44/3,740.20
  6. Step 6: Final answer
    x = 1,912.20

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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.