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Finding the Fourth Proportional to 3,640.62, 5,038.49 and 3,553.26

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Solution

The fourth proportional to 3,640.62, 5,038.49 and 3,553.26 is: 4,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.62 : 5,038.49 = 3,553.26 : x
  2. Step 2: Convert to fraction form
    3,640.62/5,038.49 = 3,553.26/x
  3. Step 3: Cross multiply
    3,640.62x = 5,038.49 × 3,553.26
  4. Step 4: Simplify right side
    3,640.62x = 17,903,047.21
  5. Step 5: Solve for x
    x = 17,903,047.21/3,640.62
  6. Step 6: Final answer
    x = 4,917.59

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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.