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Finding the Fourth Proportional to 3,690.53, 5,532.55 and 1,745.09

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Solution

The fourth proportional to 3,690.53, 5,532.55 and 1,745.09 is: 2,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.53 : 5,532.55 = 1,745.09 : x
  2. Step 2: Convert to fraction form
    3,690.53/5,532.55 = 1,745.09/x
  3. Step 3: Cross multiply
    3,690.53x = 5,532.55 × 1,745.09
  4. Step 4: Simplify right side
    3,690.53x = 9,654,765.65
  5. Step 5: Solve for x
    x = 9,654,765.65/3,690.53
  6. Step 6: Final answer
    x = 2,616.10

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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.