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Finding the Fourth Proportional to 3,491.99, 5,236.31 and 1,641.54

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Solution

The fourth proportional to 3,491.99, 5,236.31 and 1,641.54 is: 2,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.99 : 5,236.31 = 1,641.54 : x
  2. Step 2: Convert to fraction form
    3,491.99/5,236.31 = 1,641.54/x
  3. Step 3: Cross multiply
    3,491.99x = 5,236.31 × 1,641.54
  4. Step 4: Simplify right side
    3,491.99x = 8,595,604.11
  5. Step 5: Solve for x
    x = 8,595,604.11/3,491.99
  6. Step 6: Final answer
    x = 2,461.52

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Similar ratio
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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.