Home / 5,638.36-7,781.01-3,514.75

Finding the Fourth Proportional to 5,638.36, 7,781.01 and 3,514.75

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Solution

The fourth proportional to 5,638.36, 7,781.01 and 3,514.75 is: 4,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.36 : 7,781.01 = 3,514.75 : x
  2. Step 2: Convert to fraction form
    5,638.36/7,781.01 = 3,514.75/x
  3. Step 3: Cross multiply
    5,638.36x = 7,781.01 × 3,514.75
  4. Step 4: Simplify right side
    5,638.36x = 27,348,304.90
  5. Step 5: Solve for x
    x = 27,348,304.90/5,638.36
  6. Step 6: Final answer
    x = 4,850.40

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Half scale
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Double scale
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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.