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Finding the Fourth Proportional to 3,640.84, 5,453.56 and 2,408.84

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Solution

The fourth proportional to 3,640.84, 5,453.56 and 2,408.84 is: 3,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.84 : 5,453.56 = 2,408.84 : x
  2. Step 2: Convert to fraction form
    3,640.84/5,453.56 = 2,408.84/x
  3. Step 3: Cross multiply
    3,640.84x = 5,453.56 × 2,408.84
  4. Step 4: Simplify right side
    3,640.84x = 13,136,753.47
  5. Step 5: Solve for x
    x = 13,136,753.47/3,640.84
  6. Step 6: Final answer
    x = 3,608.17

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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.