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Finding the Fourth Proportional to 6,600.65, 9,900.89 and 2,651.84

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Solution

The fourth proportional to 6,600.65, 9,900.89 and 2,651.84 is: 3,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.65 : 9,900.89 = 2,651.84 : x
  2. Step 2: Convert to fraction form
    6,600.65/9,900.89 = 2,651.84/x
  3. Step 3: Cross multiply
    6,600.65x = 9,900.89 × 2,651.84
  4. Step 4: Simplify right side
    6,600.65x = 26,255,513.37
  5. Step 5: Solve for x
    x = 26,255,513.37/6,600.65
  6. Step 6: Final answer
    x = 3,977.72

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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.