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Finding the Fourth Proportional to 2,491.22, 3,736.82 and 2,170.46

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Solution

The fourth proportional to 2,491.22, 3,736.82 and 2,170.46 is: 3,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.22 : 3,736.82 = 2,170.46 : x
  2. Step 2: Convert to fraction form
    2,491.22/3,736.82 = 2,170.46/x
  3. Step 3: Cross multiply
    2,491.22x = 3,736.82 × 2,170.46
  4. Step 4: Simplify right side
    2,491.22x = 8,110,605.08
  5. Step 5: Solve for x
    x = 8,110,605.08/2,491.22
  6. Step 6: Final answer
    x = 3,255.68

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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.