Home / 2,219.81-3,326.37-1,755.68

Finding the Fourth Proportional to 2,219.81, 3,326.37 and 1,755.68

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Solution

The fourth proportional to 2,219.81, 3,326.37 and 1,755.68 is: 2,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.81 : 3,326.37 = 1,755.68 : x
  2. Step 2: Convert to fraction form
    2,219.81/3,326.37 = 1,755.68/x
  3. Step 3: Cross multiply
    2,219.81x = 3,326.37 × 1,755.68
  4. Step 4: Simplify right side
    2,219.81x = 5,840,018.07
  5. Step 5: Solve for x
    x = 5,840,018.07/2,219.81
  6. Step 6: Final answer
    x = 2,630.87

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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.