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Finding the Fourth Proportional to 6,600.51, 9,901.71 and 2,219.22

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Solution

The fourth proportional to 6,600.51, 9,901.71 and 2,219.22 is: 3,329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.51 : 9,901.71 = 2,219.22 : x
  2. Step 2: Convert to fraction form
    6,600.51/9,901.71 = 2,219.22/x
  3. Step 3: Cross multiply
    6,600.51x = 9,901.71 × 2,219.22
  4. Step 4: Simplify right side
    6,600.51x = 21,974,072.87
  5. Step 5: Solve for x
    x = 21,974,072.87/6,600.51
  6. Step 6: Final answer
    x = 3,329.15

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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.