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Finding the Fourth Proportional to 3,676.16, 5,514 and 2,859.68

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Solution

The fourth proportional to 3,676.16, 5,514 and 2,859.68 is: 4,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.16 : 5,514 = 2,859.68 : x
  2. Step 2: Convert to fraction form
    3,676.16/5,514 = 2,859.68/x
  3. Step 3: Cross multiply
    3,676.16x = 5,514 × 2,859.68
  4. Step 4: Simplify right side
    3,676.16x = 15,768,275.52
  5. Step 5: Solve for x
    x = 15,768,275.52/3,676.16
  6. Step 6: Final answer
    x = 4,289.33

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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.