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Finding the Fourth Proportional to 7,751.27, 11,626.90 and 1,907.88

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Solution

The fourth proportional to 7,751.27, 11,626.90 and 1,907.88 is: 2,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.27 : 11,626.90 = 1,907.88 : x
  2. Step 2: Convert to fraction form
    7,751.27/11,626.90 = 1,907.88/x
  3. Step 3: Cross multiply
    7,751.27x = 11,626.90 × 1,907.88
  4. Step 4: Simplify right side
    7,751.27x = 22,182,725.20
  5. Step 5: Solve for x
    x = 22,182,725.20/7,751.27
  6. Step 6: Final answer
    x = 2,861.82

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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.