Home / 3,218.74-4,828.41-1,369.81

Finding the Fourth Proportional to 3,218.74, 4,828.41 and 1,369.81

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Solution

The fourth proportional to 3,218.74, 4,828.41 and 1,369.81 is: 2,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.74 : 4,828.41 = 1,369.81 : x
  2. Step 2: Convert to fraction form
    3,218.74/4,828.41 = 1,369.81/x
  3. Step 3: Cross multiply
    3,218.74x = 4,828.41 × 1,369.81
  4. Step 4: Simplify right side
    3,218.74x = 6,614,010.34
  5. Step 5: Solve for x
    x = 6,614,010.34/3,218.74
  6. Step 6: Final answer
    x = 2,054.85

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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.