Home / 3,690.57-5,097.96-3,428.13

Finding the Fourth Proportional to 3,690.57, 5,097.96 and 3,428.13

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Solution

The fourth proportional to 3,690.57, 5,097.96 and 3,428.13 is: 4,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.57 : 5,097.96 = 3,428.13 : x
  2. Step 2: Convert to fraction form
    3,690.57/5,097.96 = 3,428.13/x
  3. Step 3: Cross multiply
    3,690.57x = 5,097.96 × 3,428.13
  4. Step 4: Simplify right side
    3,690.57x = 17,476,469.61
  5. Step 5: Solve for x
    x = 17,476,469.61/3,690.57
  6. Step 6: Final answer
    x = 4,735.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.