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Finding the Fourth Proportional to 3,661.67, 5,491.46 and 1,028.99

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Solution

The fourth proportional to 3,661.67, 5,491.46 and 1,028.99 is: 1,543.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.67 : 5,491.46 = 1,028.99 : x
  2. Step 2: Convert to fraction form
    3,661.67/5,491.46 = 1,028.99/x
  3. Step 3: Cross multiply
    3,661.67x = 5,491.46 × 1,028.99
  4. Step 4: Simplify right side
    3,661.67x = 5,650,661.66
  5. Step 5: Solve for x
    x = 5,650,661.66/3,661.67
  6. Step 6: Final answer
    x = 1,543.19

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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.