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Finding the Fourth Proportional to 7,101.26, 10,651.50 and 2,170.90

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Solution

The fourth proportional to 7,101.26, 10,651.50 and 2,170.90 is: 3,256.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.26 : 10,651.50 = 2,170.90 : x
  2. Step 2: Convert to fraction form
    7,101.26/10,651.50 = 2,170.90/x
  3. Step 3: Cross multiply
    7,101.26x = 10,651.50 × 2,170.90
  4. Step 4: Simplify right side
    7,101.26x = 23,123,288.09
  5. Step 5: Solve for x
    x = 23,123,288.09/7,101.26
  6. Step 6: Final answer
    x = 3,256.22

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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.