Home / 2,664.44-3,988.40-2,270.78

Finding the Fourth Proportional to 2,664.44, 3,988.40 and 2,270.78

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Solution

The fourth proportional to 2,664.44, 3,988.40 and 2,270.78 is: 3,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.44 : 3,988.40 = 2,270.78 : x
  2. Step 2: Convert to fraction form
    2,664.44/3,988.40 = 2,270.78/x
  3. Step 3: Cross multiply
    2,664.44x = 3,988.40 × 2,270.78
  4. Step 4: Simplify right side
    2,664.44x = 9,056,778.95
  5. Step 5: Solve for x
    x = 9,056,778.95/2,664.44
  6. Step 6: Final answer
    x = 3,399.13

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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.