Home / 3,219.81-4,443.41-1,822.56

Finding the Fourth Proportional to 3,219.81, 4,443.41 and 1,822.56

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Solution

The fourth proportional to 3,219.81, 4,443.41 and 1,822.56 is: 2,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.81 : 4,443.41 = 1,822.56 : x
  2. Step 2: Convert to fraction form
    3,219.81/4,443.41 = 1,822.56/x
  3. Step 3: Cross multiply
    3,219.81x = 4,443.41 × 1,822.56
  4. Step 4: Simplify right side
    3,219.81x = 8,098,381.33
  5. Step 5: Solve for x
    x = 8,098,381.33/3,219.81
  6. Step 6: Final answer
    x = 2,515.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.