Home / 6,429.72-9,645.11-2,211.29

Finding the Fourth Proportional to 6,429.72, 9,645.11 and 2,211.29

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Solution

The fourth proportional to 6,429.72, 9,645.11 and 2,211.29 is: 3,317.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.72 : 9,645.11 = 2,211.29 : x
  2. Step 2: Convert to fraction form
    6,429.72/9,645.11 = 2,211.29/x
  3. Step 3: Cross multiply
    6,429.72x = 9,645.11 × 2,211.29
  4. Step 4: Simplify right side
    6,429.72x = 21,328,076.01
  5. Step 5: Solve for x
    x = 21,328,076.01/6,429.72
  6. Step 6: Final answer
    x = 3,317.11

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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.