Home / 3,779.39-5,215.56-2,207.18

Finding the Fourth Proportional to 3,779.39, 5,215.56 and 2,207.18

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Solution

The fourth proportional to 3,779.39, 5,215.56 and 2,207.18 is: 3,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.39 : 5,215.56 = 2,207.18 : x
  2. Step 2: Convert to fraction form
    3,779.39/5,215.56 = 2,207.18/x
  3. Step 3: Cross multiply
    3,779.39x = 5,215.56 × 2,207.18
  4. Step 4: Simplify right side
    3,779.39x = 11,511,679.72
  5. Step 5: Solve for x
    x = 11,511,679.72/3,779.39
  6. Step 6: Final answer
    x = 3,045.91

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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.