Home / 2,379.42-3,283.30-1,331.22

Finding the Fourth Proportional to 2,379.42, 3,283.30 and 1,331.22

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Solution

The fourth proportional to 2,379.42, 3,283.30 and 1,331.22 is: 1,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.42 : 3,283.30 = 1,331.22 : x
  2. Step 2: Convert to fraction form
    2,379.42/3,283.30 = 1,331.22/x
  3. Step 3: Cross multiply
    2,379.42x = 3,283.30 × 1,331.22
  4. Step 4: Simplify right side
    2,379.42x = 4,370,794.63
  5. Step 5: Solve for x
    x = 4,370,794.63/2,379.42
  6. Step 6: Final answer
    x = 1,836.92

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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.