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Finding the Fourth Proportional to 3,676.67, 5,514.91 and 903.32

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Solution

The fourth proportional to 3,676.67, 5,514.91 and 903.32 is: 1,354.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.67 : 5,514.91 = 903.32 : x
  2. Step 2: Convert to fraction form
    3,676.67/5,514.91 = 903.32/x
  3. Step 3: Cross multiply
    3,676.67x = 5,514.91 × 903.32
  4. Step 4: Simplify right side
    3,676.67x = 4,981,728.50
  5. Step 5: Solve for x
    x = 4,981,728.50/3,676.67
  6. Step 6: Final answer
    x = 1,354.96

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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.