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Finding the Fourth Proportional to 7,700.81, 11,550.01 and 2,506.65

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Solution

The fourth proportional to 7,700.81, 11,550.01 and 2,506.65 is: 3,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.81 : 11,550.01 = 2,506.65 : x
  2. Step 2: Convert to fraction form
    7,700.81/11,550.01 = 2,506.65/x
  3. Step 3: Cross multiply
    7,700.81x = 11,550.01 × 2,506.65
  4. Step 4: Simplify right side
    7,700.81x = 28,951,832.57
  5. Step 5: Solve for x
    x = 28,951,832.57/7,700.81
  6. Step 6: Final answer
    x = 3,759.58

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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.