Home / 2,722.10-4,076.75-1,331.10

Finding the Fourth Proportional to 2,722.10, 4,076.75 and 1,331.10

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Solution

The fourth proportional to 2,722.10, 4,076.75 and 1,331.10 is: 1,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.10 : 4,076.75 = 1,331.10 : x
  2. Step 2: Convert to fraction form
    2,722.10/4,076.75 = 1,331.10/x
  3. Step 3: Cross multiply
    2,722.10x = 4,076.75 × 1,331.10
  4. Step 4: Simplify right side
    2,722.10x = 5,426,561.93
  5. Step 5: Solve for x
    x = 5,426,561.93/2,722.10
  6. Step 6: Final answer
    x = 1,993.52

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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.