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Finding the Fourth Proportional to 6,600.16, 9,900.24 and 2,653.21

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Solution

The fourth proportional to 6,600.16, 9,900.24 and 2,653.21 is: 3,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.16 : 9,900.24 = 2,653.21 : x
  2. Step 2: Convert to fraction form
    6,600.16/9,900.24 = 2,653.21/x
  3. Step 3: Cross multiply
    6,600.16x = 9,900.24 × 2,653.21
  4. Step 4: Simplify right side
    6,600.16x = 26,267,415.77
  5. Step 5: Solve for x
    x = 26,267,415.77/6,600.16
  6. Step 6: Final answer
    x = 3,979.82

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Similar ratio
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1.5x scale

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.