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Finding the Fourth Proportional to 3,676.03, 5,514.23 and 1,078.75

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Solution

The fourth proportional to 3,676.03, 5,514.23 and 1,078.75 is: 1,618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.03 : 5,514.23 = 1,078.75 : x
  2. Step 2: Convert to fraction form
    3,676.03/5,514.23 = 1,078.75/x
  3. Step 3: Cross multiply
    3,676.03x = 5,514.23 × 1,078.75
  4. Step 4: Simplify right side
    3,676.03x = 5,948,475.61
  5. Step 5: Solve for x
    x = 5,948,475.61/3,676.03
  6. Step 6: Final answer
    x = 1,618.18

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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.