Home / 6,619.33-9,930.11-2,175.81

Finding the Fourth Proportional to 6,619.33, 9,930.11 and 2,175.81

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Solution

The fourth proportional to 6,619.33, 9,930.11 and 2,175.81 is: 3,264.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.33 : 9,930.11 = 2,175.81 : x
  2. Step 2: Convert to fraction form
    6,619.33/9,930.11 = 2,175.81/x
  3. Step 3: Cross multiply
    6,619.33x = 9,930.11 × 2,175.81
  4. Step 4: Simplify right side
    6,619.33x = 21,605,972.11
  5. Step 5: Solve for x
    x = 21,605,972.11/6,619.33
  6. Step 6: Final answer
    x = 3,264.07

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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.