Home / 6,600.40-9,899-2,216.72

Finding the Fourth Proportional to 6,600.40, 9,899 and 2,216.72

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Solution

The fourth proportional to 6,600.40, 9,899 and 2,216.72 is: 3,324.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.40 : 9,899 = 2,216.72 : x
  2. Step 2: Convert to fraction form
    6,600.40/9,899 = 2,216.72/x
  3. Step 3: Cross multiply
    6,600.40x = 9,899 × 2,216.72
  4. Step 4: Simplify right side
    6,600.40x = 21,943,311.28
  5. Step 5: Solve for x
    x = 21,943,311.28/6,600.40
  6. Step 6: Final answer
    x = 3,324.54

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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.